feat(api): tiered cumulative quota + self-service registration

Anonymous callers get a free cumulative quota (1000 calls per IP); once
exhausted they get 403 quota_exhausted and must register. Public users can
self-register (email+password) to obtain a higher-quota API key, view usage,
and regenerate the key. Quota counters live in Redis; the public API stays
read-only except for the registration writes.

- migration 0011: app_user table + api_key.quota_total + 'registered' tier
- ratelimit: IncrTotal/TotalUsed/CopyTotal lifetime counters
- middleware: enforce cumulative quota + X-Quota-* headers
- store: RegisterUser/Authenticate/RegenerateKey (bcrypt)
- handlers: POST /api/v1/register, /account, /account/regenerate
- admin: quota_total column + registered tier
- public: 'API 密钥' account page + API docs quota section

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

admin-frontend/src/App.tsx

@@ -5,9 +5,20 @@ import ProductList from "./components/ProductList";
 import ProductDetail from "./components/ProductDetail";
 import SubmissionsPage from "./components/SubmissionsPage";
 import ApiKeysPage from "./components/ApiKeysPage";
-import { Inbox, KeyRound, LogOut, Package } from "lucide-react";
+import CategoriesPage from "./components/CategoriesPage";
+import BrandsPage from "./components/BrandsPage";
+import StatsPage from "./components/StatsPage";
+import AuditLogPage from "./components/AuditLogPage";
+import { BarChart3, FolderTree, Inbox, KeyRound, LogOut, Package, ScrollText, Tag } from "lucide-react";
 
-type Tab = "products" | "submissions" | "keys";
+type Tab =
+  | "overview"
+  | "products"
+  | "submissions"
+  | "categories"
+  | "brands"
+  | "audit"
+  | "keys";
 type View = { name: "list" } | { name: "detail"; id: string };
 
 export default function App() {
@@ -17,6 +28,7 @@ export default function App() {
   const [tab, setTab] = useState<Tab>("products");
   const [pending, setPending] = useState<number | null>(null);
   const [view, setView] = useState<View>({ name: "list" });
+  const [navIds, setNavIds] = useState<string[]>([]);
 
   useEffect(() => {
     if (!authed) return;
@@ -72,6 +84,16 @@ export default function App() {
             天工商品档案公共仓 · 后台
           </div>
           <nav className="flex items-center gap-1 text-sm">
+            <button
+              onClick={() => setTab("overview")}
+              className={`px-3 py-1.5 rounded-md flex items-center gap-1.5 ${
+                tab === "overview"
+                  ? "bg-emerald-50 text-emerald-700"
+                  : "text-gray-600 hover:bg-gray-100"
+              }`}
+            >
+              <BarChart3 className="h-4 w-4" /> 数据概览
+            </button>
             <button
               onClick={() => {
                 setTab("products");
@@ -100,6 +122,39 @@ export default function App() {
                 </span>
               )}
             </button>
+            <button
+              onClick={() => {
+                setTab("categories");
+                setView({ name: "list" });
+              }}
+              className={`px-3 py-1.5 rounded-md flex items-center gap-1.5 ${
+                tab === "categories"
+                  ? "bg-emerald-50 text-emerald-700"
+                  : "text-gray-600 hover:bg-gray-100"
+              }`}
+            >
+              <FolderTree className="h-4 w-4" /> 分类管理
+            </button>
+            <button
+              onClick={() => setTab("brands")}
+              className={`px-3 py-1.5 rounded-md flex items-center gap-1.5 ${
+                tab === "brands"
+                  ? "bg-emerald-50 text-emerald-700"
+                  : "text-gray-600 hover:bg-gray-100"
+              }`}
+            >
+              <Tag className="h-4 w-4" /> 品牌管理
+            </button>
+            <button
+              onClick={() => setTab("audit")}
+              className={`px-3 py-1.5 rounded-md flex items-center gap-1.5 ${
+                tab === "audit"
+                  ? "bg-emerald-50 text-emerald-700"
+                  : "text-gray-600 hover:bg-gray-100"
+              }`}
+            >
+              <ScrollText className="h-4 w-4" /> 操作日志
+            </button>
             <button
               onClick={() => setTab("keys")}
               className={`px-3 py-1.5 rounded-md flex items-center gap-1.5 ${
@@ -123,14 +178,32 @@ export default function App() {
         </div>
       </header>
       <main className="flex-1 overflow-auto p-6">
-        {tab === "keys" ? (
+        {tab === "overview" ? (
+          <StatsPage />
+        ) : tab === "audit" ? (
+          <AuditLogPage />
+        ) : tab === "keys" ? (
           <ApiKeysPage />
+        ) : tab === "categories" ? (
+          <CategoriesPage />
+        ) : tab === "brands" ? (
+          <BrandsPage />
         ) : tab === "submissions" ? (
           <SubmissionsPage onPending={setPending} />
         ) : view.name === "list" ? (
-          <ProductList onOpen={(id) => setView({ name: "detail", id })} />
+          <ProductList
+            onOpen={(id, ids) => {
+              setNavIds(ids);
+              setView({ name: "detail", id });
+            }}
+          />
         ) : (
-          <ProductDetail id={view.id} onBack={() => setView({ name: "list" })} />
+          <ProductDetail
+            id={view.id}
+            ids={navIds}
+            onNavigate={(id) => setView({ name: "detail", id })}
+            onBack={() => setView({ name: "list" })}
+          />
         )}
       </main>
     </div>

admin-frontend/src/api.ts

@@ -61,6 +61,11 @@ export const api = {
     }>(`/products?q=${encodeURIComponent(q)}&page=${page}&size=${size}`),
   getProduct: (id: string) =>
     request<import("./types").ProductDetail>(`/products/${id}`),
+  createProduct: (body: unknown) =>
+    request<import("./types").ProductDetail>("/products", {
+      method: "POST",
+      body: JSON.stringify(body),
+    }),
   updateProduct: (id: string, body: unknown) =>
     request<import("./types").ProductDetail>(`/products/${id}`, {
       method: "PUT",
@@ -102,8 +107,41 @@ export const api = {
     ),
   listBrands: () =>
     request<{ items: import("./types").Brand[] }>("/brands"),
+  createBrand: (name: string) =>
+    request<import("./types").Brand>("/brands", {
+      method: "POST",
+      body: JSON.stringify({ name }),
+    }),
+  updateBrand: (id: string, name: string) =>
+    request<import("./types").Brand>(`/brands/${id}`, {
+      method: "PUT",
+      body: JSON.stringify({ name }),
+    }),
+  mergeBrands: (id: string, targetId: string) =>
+    request<import("./types").Brand>(`/brands/${id}/merge`, {
+      method: "POST",
+      body: JSON.stringify({ target_id: targetId }),
+    }),
+  deleteBrand: (id: string) =>
+    request<{ status: string }>(`/brands/${id}`, { method: "DELETE" }),
+  listKindFields: (kind: string) =>
+    request<{ items: import("./types").KindField[]; kind: string }>(
+      `/kind-fields?kind=${encodeURIComponent(kind)}`,
+    ),
   listCategories: () =>
     request<{ items: import("./types").Category[] }>("/categories"),
+  createCategory: (body: import("./types").CategoryInput) =>
+    request<import("./types").Category>("/categories", {
+      method: "POST",
+      body: JSON.stringify(body),
+    }),
+  updateCategory: (id: string, body: import("./types").CategoryInput) =>
+    request<import("./types").Category>(`/categories/${id}`, {
+      method: "PUT",
+      body: JSON.stringify(body),
+    }),
+  deleteCategory: (id: string) =>
+    request<{ status: string }>(`/categories/${id}`, { method: "DELETE" }),
   listSubmissions: (status: string, page: number, size: number) =>
     request<{
       items: import("./types").SubmissionRow[];
@@ -130,6 +168,7 @@ export const api = {
     owner_email?: string;
     tier?: string;
     rate_limit_per_min?: number;
+    quota_total?: number;
   }) =>
     request<{ key: string; item: import("./types").ApiKey; warning: string }>(
       "/keys",
@@ -137,4 +176,22 @@ export const api = {
     ),
   revokeApiKey: (id: string) =>
     request<{ status: string }>(`/keys/${id}`, { method: "DELETE" }),
+  stats: () => request<import("./types").AdminStats>("/stats"),
+  auditLog: (page: number, size: number) =>
+    request<{
+      items: import("./types").AuditLogRow[];
+      page: number;
+      size: number;
+      total: number;
+    }>(`/audit?page=${page}&size=${size}`),
+  bulkProducts: (body: {
+    ids: string[];
+    action: "status" | "category";
+    status?: string;
+    category_id?: string | null;
+  }) =>
+    request<{ status: string; affected: number }>("/products/bulk", {
+      method: "POST",
+      body: JSON.stringify(body),
+    }),
 };

admin-frontend/src/components/ApiKeysPage.tsx

@@ -4,9 +4,10 @@ import type { ApiKey } from "../types";
 import { Copy, KeyRound, Plus, Trash2 } from "lucide-react";
 
 const TIERS = [
-  { key: "free", label: "免费 (free)", rate: 120 },
-  { key: "partner", label: "合作方 (partner)", rate: 600 },
-  { key: "internal", label: "内部 (internal)", rate: 6000 },
+  { key: "free", label: "免费 (free)", rate: 120, quota: 1000 },
+  { key: "registered", label: "注册用户 (registered)", rate: 300, quota: 100000 },
+  { key: "partner", label: "合作方 (partner)", rate: 600, quota: 0 },
+  { key: "internal", label: "内部 (internal)", rate: 6000, quota: 0 },
 ];
 
 function tierLabel(tier: string): string {
@@ -44,7 +45,7 @@ export default function ApiKeysPage() {
   }
 
   return (
-    <div className="max-w-4xl">
+    <div className="mx-auto max-w-4xl">
       <div className="flex items-center justify-between mb-4">
         <div>
           <h2 className="text-lg font-semibold text-gray-800 flex items-center gap-2">
@@ -111,6 +112,7 @@ export default function ApiKeysPage() {
               <th className="px-4 py-2 font-medium">级别</th>
               <th className="px-4 py-2 font-medium">速率/分钟</th>
               <th className="px-4 py-2 font-medium">用量(今日/累计)</th>
+              <th className="px-4 py-2 font-medium">累计配额</th>
               <th className="px-4 py-2 font-medium">状态</th>
               <th className="px-4 py-2 font-medium"></th>
             </tr>
@@ -118,7 +120,7 @@ export default function ApiKeysPage() {
           <tbody className="divide-y">
             {rows.length === 0 ? (
               <tr>
-                <td colSpan={7} className="px-4 py-8 text-center text-gray-400">
+                <td colSpan={8} className="px-4 py-8 text-center text-gray-400">
                   暂无密钥
                 </td>
               </tr>
@@ -139,6 +141,15 @@ export default function ApiKeysPage() {
                   <td className="px-4 py-2 text-gray-600">
                     {k.usage.today} / {k.usage.total}
                   </td>
+                  <td className="px-4 py-2 text-gray-600">
+                    {k.quota_total > 0 ? (
+                      <span className={k.usage.total >= k.quota_total ? "text-red-600" : ""}>
+                        {k.usage.total.toLocaleString()} / {k.quota_total.toLocaleString()}
+                      </span>
+                    ) : (
+                      <span className="text-gray-400">不限</span>
+                    )}
+                  </td>
                   <td className="px-4 py-2">
                     {k.revoked_at ? (
                       <span className="text-xs rounded px-2 py-0.5 bg-red-50 text-red-700">
@@ -182,13 +193,17 @@ function CreateKeyForm({
   const [ownerEmail, setOwnerEmail] = useState("");
   const [tier, setTier] = useState("free");
   const [rate, setRate] = useState(120);
+  const [quota, setQuota] = useState(1000);
   const [busy, setBusy] = useState(false);
   const [error, setError] = useState("");
 
   function pickTier(t: string) {
     setTier(t);
     const def = TIERS.find((x) => x.key === t);
-    if (def) setRate(def.rate);
+    if (def) {
+      setRate(def.rate);
+      setQuota(def.quota);
+    }
   }
 
   async function submit() {
@@ -204,6 +219,7 @@ function CreateKeyForm({
         owner_email: ownerEmail.trim() || undefined,
         tier,
         rate_limit_per_min: rate,
+        quota_total: quota,
       });
       onCreated(res.key);
     } catch (e) {
@@ -260,6 +276,16 @@ function CreateKeyForm({
             onChange={(e) => setRate(Math.max(1, parseInt(e.target.value || "1", 10)))}
           />
         </label>
+        <label className="block">
+          <span className="text-xs text-gray-500">累计配额（总调用次数，0=不限）</span>
+          <input
+            type="number"
+            min={0}
+            className="w-full border rounded-md px-3 py-2 text-sm mt-1"
+            value={quota}
+            onChange={(e) => setQuota(Math.max(0, parseInt(e.target.value || "0", 10)))}
+          />
+        </label>
       </div>
       <div className="mt-4 flex gap-2">
         <button

admin-frontend/src/components/AuditLogPage.tsx

@@ -0,0 +1,115 @@
+import { useEffect, useState } from "react";
+import { api, ApiError } from "../api";
+import type { AuditLogRow } from "../types";
+import { ScrollText } from "lucide-react";
+
+const ACTION_LABEL: Record<string, string> = {
+  create: "新建",
+  update: "修改",
+  delete: "删除",
+  add_image: "添加图片",
+  delete_image: "删除图片",
+  bulk_status: "批量改状态",
+  bulk_category: "批量改分类",
+};
+
+const ENTITY_LABEL: Record<string, string> = {
+  product: "商品",
+  category: "分类",
+  brand: "品牌",
+};
+
+export default function AuditLogPage() {
+  const [rows, setRows] = useState<AuditLogRow[]>([]);
+  const [total, setTotal] = useState(0);
+  const [page, setPage] = useState(1);
+  const size = 30;
+  const [error, setError] = useState("");
+
+  useEffect(() => {
+    setError("");
+    api
+      .auditLog(page, size)
+      .then((r) => {
+        setRows(r.items);
+        setTotal(r.total);
+      })
+      .catch((e) => setError(e instanceof ApiError ? e.message : "加载失败"));
+  }, [page]);
+
+  const pages = Math.max(1, Math.ceil(total / size));
+
+  return (
+    <div className="mx-auto max-w-5xl">
+      <h2 className="mb-4 flex items-center gap-2 text-lg font-semibold text-gray-800">
+        <ScrollText className="h-5 w-5 text-emerald-600" /> 操作日志
+        <span className="text-sm font-normal text-gray-400">共 {total} 条</span>
+      </h2>
+
+      {error && (
+        <div className="mb-3 rounded bg-red-50 px-4 py-2 text-sm text-red-700">{error}</div>
+      )}
+
+      <div className="overflow-hidden rounded-lg border bg-white">
+        <table className="w-full text-sm">
+          <thead className="bg-gray-50 text-left text-xs uppercase text-gray-500">
+            <tr>
+              <th className="px-4 py-2 font-medium">时间</th>
+              <th className="px-4 py-2 font-medium">操作人</th>
+              <th className="px-4 py-2 font-medium">动作</th>
+              <th className="px-4 py-2 font-medium">对象</th>
+              <th className="px-4 py-2 font-medium">字段</th>
+            </tr>
+          </thead>
+          <tbody className="divide-y">
+            {rows.length === 0 ? (
+              <tr>
+                <td colSpan={5} className="px-4 py-8 text-center text-gray-400">
+                  暂无记录
+                </td>
+              </tr>
+            ) : (
+              rows.map((e) => (
+                <tr key={e.id} className="hover:bg-gray-50">
+                  <td className="whitespace-nowrap px-4 py-2 text-gray-500">
+                    {new Date(e.created_at).toLocaleString()}
+                  </td>
+                  <td className="px-4 py-2 text-gray-700">{e.actor}</td>
+                  <td className="px-4 py-2 text-gray-700">
+                    {ACTION_LABEL[e.action] || e.action}
+                  </td>
+                  <td className="px-4 py-2 text-gray-600">
+                    {ENTITY_LABEL[e.entity] || e.entity}
+                  </td>
+                  <td className="px-4 py-2 text-xs text-gray-400">
+                    {e.fields.length ? e.fields.join(", ") : "—"}
+                  </td>
+                </tr>
+              ))
+            )}
+          </tbody>
+        </table>
+      </div>
+
+      <div className="mt-4 flex items-center justify-end gap-2 text-sm text-gray-600">
+        <button
+          disabled={page <= 1}
+          onClick={() => setPage((p) => p - 1)}
+          className="rounded border border-gray-300 px-3 py-1 disabled:opacity-50"
+        >
+          上一页
+        </button>
+        <span>
+          {page} / {pages}
+        </span>
+        <button
+          disabled={page >= pages}
+          onClick={() => setPage((p) => p + 1)}
+          className="rounded border border-gray-300 px-3 py-1 disabled:opacity-50"
+        >
+          下一页
+        </button>
+      </div>
+    </div>
+  );
+}

admin-frontend/src/components/BrandsPage.tsx

@@ -0,0 +1,305 @@
+import { useEffect, useMemo, useState } from "react";
+import { api, ApiError } from "../api";
+import type { Brand } from "../types";
+import { Tag, Pencil, Plus, Trash2, GitMerge, Search } from "lucide-react";
+
+type EditState = { id: string; name: string };
+type MergeState = { source: Brand; targetId: string };
+
+export default function BrandsPage() {
+  const [rows, setRows] = useState<Brand[]>([]);
+  const [error, setError] = useState("");
+  const [query, setQuery] = useState("");
+  const [creating, setCreating] = useState(false);
+  const [newName, setNewName] = useState("");
+  const [edit, setEdit] = useState<EditState | null>(null);
+  const [merge, setMerge] = useState<MergeState | null>(null);
+  const [busy, setBusy] = useState(false);
+
+  async function load() {
+    setError("");
+    try {
+      const res = await api.listBrands();
+      setRows(res.items);
+    } catch (e) {
+      setError(e instanceof ApiError ? e.message : "加载失败");
+    }
+  }
+
+  useEffect(() => {
+    load();
+  }, []);
+
+  const filtered = useMemo(() => {
+    const q = query.trim().toLowerCase();
+    if (!q) return rows;
+    return rows.filter((b) => b.name.toLowerCase().includes(q));
+  }, [rows, query]);
+
+  function fail(e: unknown, fallback: string) {
+    setError(e instanceof ApiError ? e.message : fallback);
+  }
+
+  async function create() {
+    if (!newName.trim()) return;
+    setBusy(true);
+    setError("");
+    try {
+      await api.createBrand(newName.trim());
+      setNewName("");
+      setCreating(false);
+      await load();
+    } catch (e) {
+      fail(e, "新建失败");
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  async function saveEdit() {
+    if (!edit || !edit.name.trim()) return;
+    setBusy(true);
+    setError("");
+    try {
+      await api.updateBrand(edit.id, edit.name.trim());
+      setEdit(null);
+      await load();
+    } catch (e) {
+      fail(e, "保存失败");
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  async function remove(b: Brand) {
+    if (!confirm(`确认删除品牌「${b.name}」？`)) return;
+    setError("");
+    try {
+      await api.deleteBrand(b.id);
+      await load();
+    } catch (e) {
+      fail(e, "删除失败");
+    }
+  }
+
+  async function doMerge() {
+    if (!merge || !merge.targetId) return;
+    const target = rows.find((b) => b.id === merge.targetId);
+    if (
+      !confirm(
+        `将「${merge.source.name}」的 ${merge.source.product_count} 个商品并入「${target?.name}」，并删除「${merge.source.name}」？`,
+      )
+    )
+      return;
+    setBusy(true);
+    setError("");
+    try {
+      await api.mergeBrands(merge.source.id, merge.targetId);
+      setMerge(null);
+      await load();
+    } catch (e) {
+      fail(e, "合并失败");
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  return (
+    <div className="mx-auto max-w-4xl">
+      <div className="flex items-center justify-between mb-4">
+        <div>
+          <h2 className="text-lg font-semibold text-gray-800 flex items-center gap-2">
+            <Tag className="h-5 w-5 text-emerald-600" /> 品牌管理
+          </h2>
+          <p className="text-sm text-gray-500 mt-1">
+            维护品牌名录。可重命名、删除未被引用的品牌，或将重复品牌合并到一起。
+          </p>
+        </div>
+        <button
+          onClick={() => {
+            setCreating(true);
+            setNewName("");
+          }}
+          className="px-4 py-2 rounded-lg bg-emerald-600 text-white text-sm font-medium hover:bg-emerald-700 flex items-center gap-1.5"
+        >
+          <Plus className="h-4 w-4" /> 新建品牌
+        </button>
+      </div>
+
+      {error && (
+        <div className="mb-3 bg-red-50 text-red-700 text-sm rounded px-4 py-2">{error}</div>
+      )}
+
+      <div className="mb-3 relative w-72">
+        <Search className="absolute left-2 top-2.5 h-4 w-4 text-gray-400" />
+        <input
+          value={query}
+          onChange={(e) => setQuery(e.target.value)}
+          placeholder="筛选品牌名"
+          className="w-full rounded border border-gray-300 py-2 pl-8 pr-3 text-sm focus:border-emerald-500 focus:outline-none"
+        />
+      </div>
+
+      {creating && (
+        <div className="mb-4 bg-white border rounded-lg p-5">
+          <h3 className="font-medium text-gray-700 mb-3">新建品牌</h3>
+          <div className="flex items-end gap-2">
+            <label className="block flex-1">
+              <span className="text-xs text-gray-500">品牌名称 *</span>
+              <input
+                autoFocus
+                className="w-full border rounded-md px-3 py-2 text-sm mt-1"
+                value={newName}
+                onChange={(e) => setNewName(e.target.value)}
+                onKeyDown={(e) => e.key === "Enter" && create()}
+                placeholder="例如：可口可乐"
+              />
+            </label>
+            <button
+              onClick={create}
+              disabled={busy}
+              className="px-4 py-2 rounded bg-emerald-600 text-white text-sm hover:bg-emerald-700 disabled:opacity-60"
+            >
+              保存
+            </button>
+            <button
+              onClick={() => setCreating(false)}
+              className="px-4 py-2 rounded border text-sm text-gray-600"
+            >
+              取消
+            </button>
+          </div>
+        </div>
+      )}
+
+      {merge && (
+        <div className="mb-4 bg-white border rounded-lg p-5">
+          <h3 className="font-medium text-gray-700 mb-3 flex items-center gap-1.5">
+            <GitMerge className="h-4 w-4 text-emerald-600" /> 合并品牌
+          </h3>
+          <p className="text-sm text-gray-500 mb-3">
+            把「{merge.source.name}」（{merge.source.product_count} 个商品）合并到下面选择的品牌，源品牌将被删除。
+          </p>
+          <div className="flex items-end gap-2">
+            <label className="block flex-1">
+              <span className="text-xs text-gray-500">合并到</span>
+              <select
+                className="w-full border rounded-md px-3 py-2 text-sm mt-1 bg-white"
+                value={merge.targetId}
+                onChange={(e) => setMerge({ ...merge, targetId: e.target.value })}
+              >
+                <option value="">（请选择目标品牌）</option>
+                {rows
+                  .filter((b) => b.id !== merge.source.id)
+                  .map((b) => (
+                    <option key={b.id} value={b.id}>
+                      {b.name}（{b.product_count}）
+                    </option>
+                  ))}
+              </select>
+            </label>
+            <button
+              onClick={doMerge}
+              disabled={busy || !merge.targetId}
+              className="px-4 py-2 rounded bg-emerald-600 text-white text-sm hover:bg-emerald-700 disabled:opacity-60"
+            >
+              合并
+            </button>
+            <button
+              onClick={() => setMerge(null)}
+              className="px-4 py-2 rounded border text-sm text-gray-600"
+            >
+              取消
+            </button>
+          </div>
+        </div>
+      )}
+
+      <div className="bg-white border rounded-lg overflow-hidden">
+        <table className="w-full text-sm">
+          <thead className="bg-gray-50 text-gray-500 text-left">
+            <tr>
+              <th className="px-4 py-2 font-medium">品牌</th>
+              <th className="px-4 py-2 font-medium">商品数</th>
+              <th className="px-4 py-2 font-medium"></th>
+            </tr>
+          </thead>
+          <tbody className="divide-y">
+            {filtered.length === 0 ? (
+              <tr>
+                <td colSpan={3} className="px-4 py-8 text-center text-gray-400">
+                  {rows.length === 0 ? "暂无品牌" : "无匹配品牌"}
+                </td>
+              </tr>
+            ) : (
+              filtered.map((b) => (
+                <tr key={b.id} className="hover:bg-gray-50">
+                  <td className="px-4 py-2 text-gray-800">
+                    {edit && edit.id === b.id ? (
+                      <input
+                        autoFocus
+                        className="border rounded px-2 py-1 text-sm w-64"
+                        value={edit.name}
+                        onChange={(e) => setEdit({ ...edit, name: e.target.value })}
+                        onKeyDown={(e) => {
+                          if (e.key === "Enter") saveEdit();
+                          if (e.key === "Escape") setEdit(null);
+                        }}
+                      />
+                    ) : (
+                      <span className="font-medium">{b.name}</span>
+                    )}
+                  </td>
+                  <td className="px-4 py-2 text-gray-600">{b.product_count}</td>
+                  <td className="px-4 py-2 text-right whitespace-nowrap">
+                    {edit && edit.id === b.id ? (
+                      <>
+                        <button
+                          onClick={saveEdit}
+                          disabled={busy}
+                          className="text-emerald-600 hover:text-emerald-700 text-xs mr-3"
+                        >
+                          保存
+                        </button>
+                        <button
+                          onClick={() => setEdit(null)}
+                          className="text-gray-400 hover:text-gray-600 text-xs"
+                        >
+                          取消
+                        </button>
+                      </>
+                    ) : (
+                      <>
+                        <button
+                          onClick={() => setEdit({ id: b.id, name: b.name })}
+                          className="text-gray-400 hover:text-emerald-600 mr-3"
+                          title="重命名"
+                        >
+                          <Pencil className="h-4 w-4" />
+                        </button>
+                        <button
+                          onClick={() => setMerge({ source: b, targetId: "" })}
+                          className="text-gray-400 hover:text-emerald-600 mr-3"
+                          title="合并到其它品牌"
+                        >
+                          <GitMerge className="h-4 w-4" />
+                        </button>
+                        <button
+                          onClick={() => remove(b)}
+                          className="text-gray-400 hover:text-red-600"
+                          title="删除"
+                        >
+                          <Trash2 className="h-4 w-4" />
+                        </button>
+                      </>
+                    )}
+                  </td>
+                </tr>
+              ))
+            )}
+          </tbody>
+        </table>
+      </div>
+    </div>
+  );
+}

admin-frontend/src/components/CategoriesPage.tsx

@@ -0,0 +1,311 @@
+import { useEffect, useMemo, useState } from "react";
+import { api, ApiError } from "../api";
+import type { Category, CategoryInput } from "../types";
+import { FolderTree, Pencil, Plus, Trash2 } from "lucide-react";
+
+type FormState = {
+  mode: "create" | "edit";
+  id?: string;
+  name_zh: string;
+  name_en: string;
+  slug: string;
+  parent_id: string; // "" = top level
+  gpc_brick_code: string;
+};
+
+function emptyForm(parentId = ""): FormState {
+  return {
+    mode: "create",
+    name_zh: "",
+    name_en: "",
+    slug: "",
+    parent_id: parentId,
+    gpc_brick_code: "",
+  };
+}
+
+export default function CategoriesPage() {
+  const [rows, setRows] = useState<Category[]>([]);
+  const [error, setError] = useState("");
+  const [form, setForm] = useState<FormState | null>(null);
+
+  async function load() {
+    setError("");
+    try {
+      const res = await api.listCategories();
+      setRows(res.items);
+    } catch (e) {
+      setError(e instanceof ApiError ? e.message : "加载失败");
+    }
+  }
+
+  useEffect(() => {
+    load();
+  }, []);
+
+  async function remove(c: Category) {
+    if (!confirm(`确认删除分类「${c.name_zh}」(${c.path})？`)) return;
+    setError("");
+    try {
+      await api.deleteCategory(c.id);
+      await load();
+    } catch (e) {
+      setError(e instanceof ApiError ? e.message : "删除失败");
+    }
+  }
+
+  return (
+    <div className="mx-auto max-w-5xl">
+      <div className="flex items-center justify-between mb-4">
+        <div>
+          <h2 className="text-lg font-semibold text-gray-800 flex items-center gap-2">
+            <FolderTree className="h-5 w-5 text-emerald-600" /> 分类管理
+          </h2>
+          <p className="text-sm text-gray-500 mt-1">
+            维护商品分类树。英文标识(slug)用于分类路径，新建后不可修改；可重命名、移动层级、删除空分类。
+          </p>
+        </div>
+        <button
+          onClick={() => setForm(emptyForm())}
+          className="px-4 py-2 rounded-lg bg-emerald-600 text-white text-sm font-medium hover:bg-emerald-700 flex items-center gap-1.5"
+        >
+          <Plus className="h-4 w-4" /> 新建顶级分类
+        </button>
+      </div>
+
+      {error && (
+        <div className="mb-3 bg-red-50 text-red-700 text-sm rounded px-4 py-2">{error}</div>
+      )}
+
+      {form && (
+        <CategoryForm
+          form={form}
+          categories={rows}
+          onClose={() => setForm(null)}
+          onSaved={() => {
+            setForm(null);
+            load();
+          }}
+          onError={setError}
+        />
+      )}
+
+      <div className="bg-white border rounded-lg overflow-hidden">
+        <table className="w-full text-sm">
+          <thead className="bg-gray-50 text-gray-500 text-left">
+            <tr>
+              <th className="px-4 py-2 font-medium">名称</th>
+              <th className="px-4 py-2 font-medium">路径</th>
+              <th className="px-4 py-2 font-medium">GPC</th>
+              <th className="px-4 py-2 font-medium">商品数</th>
+              <th className="px-4 py-2 font-medium"></th>
+            </tr>
+          </thead>
+          <tbody className="divide-y">
+            {rows.length === 0 ? (
+              <tr>
+                <td colSpan={5} className="px-4 py-8 text-center text-gray-400">
+                  暂无分类
+                </td>
+              </tr>
+            ) : (
+              rows.map((c) => (
+                <tr key={c.id} className="hover:bg-gray-50">
+                  <td className="px-4 py-2 text-gray-800">
+                    <span style={{ paddingLeft: `${c.level * 18}px` }} className="inline-flex items-center gap-2">
+                      {c.level > 0 && <span className="text-gray-300">└</span>}
+                      <span className="font-medium">{c.name_zh}</span>
+                      {c.name_en && <span className="text-xs text-gray-400">{c.name_en}</span>}
+                    </span>
+                  </td>
+                  <td className="px-4 py-2 text-gray-500">
+                    <code className="text-xs">{c.path}</code>
+                  </td>
+                  <td className="px-4 py-2 text-gray-500 text-xs">{c.gpc_brick_code || "—"}</td>
+                  <td className="px-4 py-2 text-gray-600">{c.product_count}</td>
+                  <td className="px-4 py-2 text-right whitespace-nowrap">
+                    <button
+                      onClick={() => setForm(emptyForm(c.id))}
+                      className="text-gray-400 hover:text-emerald-600 mr-3"
+                      title="新增子分类"
+                    >
+                      <Plus className="h-4 w-4" />
+                    </button>
+                    <button
+                      onClick={() =>
+                        setForm({
+                          mode: "edit",
+                          id: c.id,
+                          name_zh: c.name_zh,
+                          name_en: c.name_en ?? "",
+                          slug: c.path,
+                          parent_id: c.parent_id ?? "",
+                          gpc_brick_code: c.gpc_brick_code ?? "",
+                        })
+                      }
+                      className="text-gray-400 hover:text-emerald-600 mr-3"
+                      title="编辑"
+                    >
+                      <Pencil className="h-4 w-4" />
+                    </button>
+                    <button
+                      onClick={() => remove(c)}
+                      className="text-gray-400 hover:text-red-600"
+                      title="删除"
+                    >
+                      <Trash2 className="h-4 w-4" />
+                    </button>
+                  </td>
+                </tr>
+              ))
+            )}
+          </tbody>
+        </table>
+      </div>
+    </div>
+  );
+}
+
+function CategoryForm({
+  form,
+  categories,
+  onClose,
+  onSaved,
+  onError,
+}: {
+  form: FormState;
+  categories: Category[];
+  onClose: () => void;
+  onSaved: () => void;
+  onError: (msg: string) => void;
+}) {
+  const [state, setState] = useState<FormState>(form);
+  const [busy, setBusy] = useState(false);
+
+  // When editing, the node itself and its descendants are not valid parents.
+  const parentOptions = useMemo(() => {
+    if (state.mode === "create") return categories;
+    const self = categories.find((c) => c.id === state.id);
+    if (!self) return categories;
+    return categories.filter(
+      (c) => c.id !== self.id && !c.path.startsWith(self.path + "."),
+    );
+  }, [categories, state.mode, state.id]);
+
+  function set<K extends keyof FormState>(key: K, value: FormState[K]) {
+    setState((s) => ({ ...s, [key]: value }));
+  }
+
+  async function submit() {
+    if (!state.name_zh.trim()) {
+      onError("分类名称不能为空");
+      return;
+    }
+    setBusy(true);
+    onError("");
+    const body: CategoryInput = {
+      name_zh: state.name_zh.trim(),
+      name_en: state.name_en.trim() || null,
+      parent_id: state.parent_id || null,
+      gpc_brick_code: state.gpc_brick_code.trim() || null,
+    };
+    if (state.mode === "create") body.slug = state.slug.trim() || null;
+    try {
+      if (state.mode === "create") {
+        await api.createCategory(body);
+      } else if (state.id) {
+        await api.updateCategory(state.id, body);
+      }
+      onSaved();
+    } catch (e) {
+      onError(e instanceof ApiError ? e.message : "保存失败");
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  return (
+    <div className="mb-4 bg-white border rounded-lg p-5">
+      <h3 className="font-medium text-gray-700 mb-3">
+        {state.mode === "create" ? "新建分类" : "编辑分类"}
+      </h3>
+      <div className="grid grid-cols-2 gap-4">
+        <label className="block">
+          <span className="text-xs text-gray-500">中文名称 *</span>
+          <input
+            className="w-full border rounded-md px-3 py-2 text-sm mt-1"
+            value={state.name_zh}
+            onChange={(e) => set("name_zh", e.target.value)}
+            placeholder="例如：饮料"
+          />
+        </label>
+        <label className="block">
+          <span className="text-xs text-gray-500">英文名称（可选）</span>
+          <input
+            className="w-full border rounded-md px-3 py-2 text-sm mt-1"
+            value={state.name_en}
+            onChange={(e) => set("name_en", e.target.value)}
+            placeholder="Beverages"
+          />
+        </label>
+        <label className="block">
+          <span className="text-xs text-gray-500">上级分类</span>
+          <select
+            className="w-full border rounded-md px-3 py-2 text-sm mt-1 bg-white"
+            value={state.parent_id}
+            onChange={(e) => set("parent_id", e.target.value)}
+          >
+            <option value="">（顶级分类）</option>
+            {parentOptions.map((c) => (
+              <option key={c.id} value={c.id}>
+                {"\u00A0".repeat(c.level * 2)}
+                {c.name_zh} ({c.path})
+              </option>
+            ))}
+          </select>
+        </label>
+        {state.mode === "create" ? (
+          <label className="block">
+            <span className="text-xs text-gray-500">英文标识 slug（可选，留空自动生成）</span>
+            <input
+              className="w-full border rounded-md px-3 py-2 text-sm mt-1"
+              value={state.slug}
+              onChange={(e) => set("slug", e.target.value)}
+              placeholder="beverages"
+            />
+          </label>
+        ) : (
+          <label className="block">
+            <span className="text-xs text-gray-500">路径（不可修改）</span>
+            <input
+              className="w-full border rounded-md px-3 py-2 text-sm mt-1 bg-gray-50 text-gray-400"
+              value={state.slug}
+              disabled
+            />
+          </label>
+        )}
+        <label className="block">
+          <span className="text-xs text-gray-500">GPC Brick 编码（可选）</span>
+          <input
+            className="w-full border rounded-md px-3 py-2 text-sm mt-1"
+            value={state.gpc_brick_code}
+            onChange={(e) => set("gpc_brick_code", e.target.value)}
+            placeholder="10000224"
+          />
+        </label>
+      </div>
+      <div className="mt-4 flex gap-2">
+        <button
+          onClick={submit}
+          disabled={busy}
+          className="px-4 py-2 rounded bg-emerald-600 text-white text-sm hover:bg-emerald-700 disabled:opacity-60"
+        >
+          保存
+        </button>
+        <button onClick={onClose} className="px-4 py-2 rounded border text-sm text-gray-600">
+          取消
+        </button>
+      </div>
+    </div>
+  );
+}

admin-frontend/src/components/ProductDetail.tsx

@@ -5,10 +5,13 @@ import {
   Brand,
   Category,
   FIELD_LABELS,
+  KindField,
   ProductDetail as Detail,
 } from "../types";
 import {
   ArrowLeft,
+  ChevronLeft,
+  ChevronRight,
   Plus,
   Save,
   Trash2,
@@ -88,10 +91,18 @@ const inputCls =
 export default function ProductDetail({
   id,
   onBack,
+  ids = [],
+  onNavigate,
 }: {
   id: string;
   onBack: () => void;
+  ids?: string[];
+  onNavigate?: (id: string) => void;
 }) {
+  const navIndex = ids.indexOf(id);
+  const prevId = navIndex > 0 ? ids[navIndex - 1] : null;
+  const nextId =
+    navIndex >= 0 && navIndex < ids.length - 1 ? ids[navIndex + 1] : null;
   const [d, setD] = useState<Detail | null>(null);
   const [brands, setBrands] = useState<Brand[]>([]);
   const [categories, setCategories] = useState<Category[]>([]);
@@ -117,6 +128,8 @@ export default function ProductDetail({
   const [basis, setBasis] = useState("");
   const [serving, setServing] = useState("");
   const [nutriScore, setNutriScore] = useState("");
+  const [kindFields, setKindFields] = useState<KindField[]>([]);
+  const [attrs, setAttrs] = useState<Record<string, string>>({});
 
   function hydrate(detail: Detail) {
     setD(detail);
@@ -139,6 +152,13 @@ export default function ProductDetail({
     setBasis(detail.nutrition_basis || "");
     setServing(detail.serving_size || "");
     setNutriScore(detail.nutri_score || "");
+    const am: Record<string, string> = {};
+    if (detail.attributes) {
+      for (const [k, v] of Object.entries(detail.attributes)) {
+        am[k] = v == null ? "" : Array.isArray(v) ? v.join(", ") : String(v);
+      }
+    }
+    setAttrs(am);
   }
 
   function reload() {
@@ -161,6 +181,41 @@ export default function ProductDetail({
 
   const missing = useMemo(() => d?.missing ?? [], [d]);
 
+  const selectedKind = useMemo(() => {
+    const c = categories.find((x) => x.id === categoryId);
+    return c?.archive_kind || d?.archive_kind || "generic";
+  }, [categories, categoryId, d]);
+
+  useEffect(() => {
+    if (selectedKind && selectedKind !== "food") {
+      api
+        .listKindFields(selectedKind)
+        .then((r) => setKindFields(r.items))
+        .catch(() => setKindFields([]));
+    } else {
+      setKindFields([]);
+    }
+  }, [selectedKind]);
+
+  const specGroups = useMemo(() => {
+    const groups: { label: string; fields: KindField[] }[] = [];
+    for (const f of kindFields) {
+      let g = groups.find((x) => x.label === f.group_label);
+      if (!g) {
+        g = { label: f.group_label, fields: [] };
+        groups.push(g);
+      }
+      g.fields.push(f);
+    }
+    return groups;
+  }, [kindFields]);
+
+  const attrLabels = useMemo(() => {
+    const m: Record<string, string> = {};
+    for (const f of kindFields) m[f.field_key] = f.label_zh;
+    return m;
+  }, [kindFields]);
+
   function parseList(s: string): string[] {
     return s
       .split(",")
@@ -177,6 +232,22 @@ export default function ProductDetail({
       const n = parseFloat(v);
       if (!Number.isNaN(n)) nm[k] = n;
     }
+    let attributes: Record<string, unknown> | undefined;
+    if (selectedKind !== "food") {
+      attributes = {};
+      for (const f of kindFields) {
+        const raw = (attrs[f.field_key] ?? "").trim();
+        if (raw === "") continue;
+        if (f.field_type === "number") {
+          const n = parseFloat(raw);
+          if (!Number.isNaN(n)) attributes[f.field_key] = n;
+        } else if (f.field_type === "list") {
+          attributes[f.field_key] = parseList(raw);
+        } else {
+          attributes[f.field_key] = raw;
+        }
+      }
+    }
     const body = {
       gtin: gtin.trim() || null,
       name: name.trim(),
@@ -194,6 +265,7 @@ export default function ProductDetail({
       nutrition_basis: basis || null,
       serving_size: serving.trim() || null,
       nutri_score: nutriScore || null,
+      ...(attributes !== undefined ? { attributes } : {}),
     };
     try {
       const updated = await api.updateProduct(id, body);
@@ -226,12 +298,35 @@ export default function ProductDetail({
   return (
     <div className="mx-auto max-w-5xl space-y-5">
       <div className="flex items-center justify-between">
-        <button
-          onClick={onBack}
-          className="flex items-center gap-1 text-sm text-gray-600 hover:text-gray-900"
-        >
-          <ArrowLeft className="h-4 w-4" /> 返回列表
-        </button>
+        <div className="flex items-center gap-2">
+          <button
+            onClick={onBack}
+            className="flex items-center gap-1 text-sm text-gray-600 hover:text-gray-900"
+          >
+            <ArrowLeft className="h-4 w-4" /> 返回列表
+          </button>
+          {ids.length > 1 && navIndex >= 0 && (
+            <div className="ml-2 flex items-center gap-1 text-sm">
+              <button
+                onClick={() => prevId && onNavigate?.(prevId)}
+                disabled={!prevId}
+                className="flex items-center gap-1 rounded border border-gray-300 px-2 py-1 text-gray-600 hover:bg-gray-50 disabled:opacity-40"
+              >
+                <ChevronLeft className="h-4 w-4" /> 上一个
+              </button>
+              <span className="text-xs text-gray-400">
+                {navIndex + 1} / {ids.length}
+              </span>
+              <button
+                onClick={() => nextId && onNavigate?.(nextId)}
+                disabled={!nextId}
+                className="flex items-center gap-1 rounded border border-gray-300 px-2 py-1 text-gray-600 hover:bg-gray-50 disabled:opacity-40"
+              >
+                下一个 <ChevronRight className="h-4 w-4" />
+              </button>
+            </div>
+          )}
+        </div>
         <div className="flex items-center gap-3">
           {msg && <span className="text-sm text-emerald-600">{msg}</span>}
           {error && <span className="text-sm text-red-600">{error}</span>}
@@ -251,7 +346,8 @@ export default function ProductDetail({
       {missing.length > 0 && (
         <div className="flex items-center gap-2 rounded-lg border border-amber-200 bg-amber-50 px-4 py-3 text-sm text-amber-700">
           <AlertCircle className="h-4 w-4" />
-          待补全字段：{missing.map((f) => FIELD_LABELS[f] || f).join("、")}
+          待补全字段：
+          {missing.map((f) => FIELD_LABELS[f] || attrLabels[f] || f).join("、")}
         </div>
       )}
 
@@ -338,6 +434,7 @@ export default function ProductDetail({
         </div>
       </Card>
 
+      {selectedKind === "food" && (
       <Card title="配料与营养">
         <div className="mb-4 grid grid-cols-2 gap-4">
           <Field label="配料表">
@@ -410,6 +507,75 @@ export default function ProductDetail({
           ))}
         </div>
       </Card>
+      )}
+
+      {selectedKind !== "food" && kindFields.length > 0 && (
+        <Card title="规格参数">
+          {specGroups.map((grp) => (
+            <div key={grp.label} className="mb-4 last:mb-0">
+              {grp.label && (
+                <h4 className="mb-2 text-xs font-medium text-gray-500">
+                  {grp.label}
+                </h4>
+              )}
+              <div className="grid grid-cols-3 gap-3">
+                {grp.fields.map((f) => (
+                  <Field
+                    key={f.field_key}
+                    label={f.unit ? `${f.label_zh} (${f.unit})` : f.label_zh}
+                  >
+                    {f.field_type === "select" ? (
+                      <select
+                        className={inputCls}
+                        value={attrs[f.field_key] ?? ""}
+                        onChange={(e) =>
+                          setAttrs((prev) => ({
+                            ...prev,
+                            [f.field_key]: e.target.value,
+                          }))
+                        }
+                      >
+                        <option value="">（未设置）</option>
+                        {f.options.map((o) => (
+                          <option key={o} value={o}>
+                            {o}
+                          </option>
+                        ))}
+                      </select>
+                    ) : f.field_type === "textarea" ? (
+                      <textarea
+                        className={inputCls}
+                        rows={3}
+                        value={attrs[f.field_key] ?? ""}
+                        onChange={(e) =>
+                          setAttrs((prev) => ({
+                            ...prev,
+                            [f.field_key]: e.target.value,
+                          }))
+                        }
+                      />
+                    ) : (
+                      <input
+                        className={inputCls}
+                        type={f.field_type === "number" ? "number" : "text"}
+                        step={f.field_type === "number" ? "any" : undefined}
+                        placeholder={f.placeholder ?? undefined}
+                        value={attrs[f.field_key] ?? ""}
+                        onChange={(e) =>
+                          setAttrs((prev) => ({
+                            ...prev,
+                            [f.field_key]: e.target.value,
+                          }))
+                        }
+                      />
+                    )}
+                  </Field>
+                ))}
+              </div>
+            </div>
+          ))}
+        </Card>
+      )}
 
       <BarcodesCard product={d} onChange={reload} onError={setError} />
       <ImagesCard

admin-frontend/src/components/ProductList.tsx

@@ -1,7 +1,7 @@
 import { useEffect, useState } from "react";
-import { api } from "../api";
-import { FIELD_LABELS, ProductRow } from "../types";
-import { Search, AlertCircle } from "lucide-react";
+import { api, ApiError } from "../api";
+import { Brand, Category, FIELD_LABELS, ProductRow } from "../types";
+import { Search, AlertCircle, Plus } from "lucide-react";
 
 const STATUS_LABEL: Record<string, string> = {
   active: "在用",
@@ -27,18 +27,25 @@ function QualityBadge({ score }: { score: number }) {
 export default function ProductList({
   onOpen,
 }: {
-  onOpen: (id: string) => void;
+  onOpen: (id: string, ids: string[]) => void;
 }) {
   const [q, setQ] = useState("");
   const [input, setInput] = useState("");
   const [page, setPage] = useState(1);
-  const [size] = useState(20);
+  const [size, setSize] = useState(20);
+  const [jump, setJump] = useState("");
   const [rows, setRows] = useState<ProductRow[]>([]);
   const [total, setTotal] = useState(0);
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState("");
+  const [creating, setCreating] = useState(false);
+  const [selected, setSelected] = useState<Set<string>>(new Set());
+  const [categories, setCategories] = useState<Category[]>([]);
+  const [bulkStatus, setBulkStatus] = useState("");
+  const [bulkCategory, setBulkCategory] = useState("");
+  const [bulkBusy, setBulkBusy] = useState(false);
 
-  useEffect(() => {
+  function reload() {
     setLoading(true);
     setError("");
     api
@@ -49,8 +56,72 @@ export default function ProductList({
       })
       .catch((e) => setError(e.message))
       .finally(() => setLoading(false));
+  }
+
+  useEffect(() => {
+    setSelected(new Set());
+    reload();
   }, [q, page, size]);
 
+  useEffect(() => {
+    api.listCategories().then((r) => setCategories(r.items)).catch(() => {});
+  }, []);
+
+  function toggle(id: string) {
+    setSelected((prev) => {
+      const next = new Set(prev);
+      if (next.has(id)) next.delete(id);
+      else next.add(id);
+      return next;
+    });
+  }
+
+  function toggleAll() {
+    setSelected((prev) =>
+      prev.size === rows.length ? new Set() : new Set(rows.map((r) => r.id)),
+    );
+  }
+
+  async function applyBulkStatus() {
+    if (!bulkStatus || selected.size === 0) return;
+    setBulkBusy(true);
+    setError("");
+    try {
+      await api.bulkProducts({
+        ids: [...selected],
+        action: "status",
+        status: bulkStatus,
+      });
+      setSelected(new Set());
+      setBulkStatus("");
+      reload();
+    } catch (e) {
+      setError(e instanceof ApiError ? e.message : "批量操作失败");
+    } finally {
+      setBulkBusy(false);
+    }
+  }
+
+  async function applyBulkCategory() {
+    if (selected.size === 0) return;
+    setBulkBusy(true);
+    setError("");
+    try {
+      await api.bulkProducts({
+        ids: [...selected],
+        action: "category",
+        category_id: bulkCategory || null,
+      });
+      setSelected(new Set());
+      setBulkCategory("");
+      reload();
+    } catch (e) {
+      setError(e instanceof ApiError ? e.message : "批量操作失败");
+    } finally {
+      setBulkBusy(false);
+    }
+  }
+
   const pages = Math.max(1, Math.ceil(total / size));
 
   return (
@@ -79,19 +150,101 @@ export default function ProductList({
           <button className="rounded bg-emerald-600 px-3 py-2 text-sm text-white hover:bg-emerald-700">
             搜索
           </button>
+          <button
+            type="button"
+            onClick={() => setCreating(true)}
+            className="flex items-center gap-1 rounded bg-gray-700 px-3 py-2 text-sm text-white hover:bg-gray-800"
+          >
+            <Plus className="h-4 w-4" /> 新建商品
+          </button>
         </form>
       </div>
 
+      {creating && (
+        <CreateProductModal
+          onClose={() => setCreating(false)}
+          onCreated={(id) => {
+            setCreating(false);
+            onOpen(id, [id]);
+          }}
+        />
+      )}
+
       {error && (
         <div className="mb-3 rounded bg-red-50 px-3 py-2 text-sm text-red-600">
           {error}
         </div>
       )}
 
+      {selected.size > 0 && (
+        <div className="mb-3 flex flex-wrap items-center gap-3 rounded-lg border border-emerald-200 bg-emerald-50 px-4 py-3 text-sm">
+          <span className="font-medium text-emerald-800">
+            已选 {selected.size} 项
+          </span>
+          <div className="flex items-center gap-1.5">
+            <span className="text-gray-500">改状态</span>
+            <select
+              value={bulkStatus}
+              onChange={(e) => setBulkStatus(e.target.value)}
+              className="rounded border border-gray-300 bg-white px-2 py-1"
+            >
+              <option value="">选择</option>
+              <option value="active">在用</option>
+              <option value="deprecated">已停用</option>
+              <option value="merged">已合并</option>
+            </select>
+            <button
+              onClick={applyBulkStatus}
+              disabled={bulkBusy || !bulkStatus}
+              className="rounded bg-emerald-600 px-3 py-1 text-white hover:bg-emerald-700 disabled:opacity-50"
+            >
+              应用
+            </button>
+          </div>
+          <div className="flex items-center gap-1.5">
+            <span className="text-gray-500">改分类</span>
+            <select
+              value={bulkCategory}
+              onChange={(e) => setBulkCategory(e.target.value)}
+              className="rounded border border-gray-300 bg-white px-2 py-1"
+            >
+              <option value="">（未分类）</option>
+              {categories.map((c) => (
+                <option key={c.id} value={c.id}>
+                  {"\u00A0".repeat(c.level * 2)}
+                  {c.name_zh}
+                </option>
+              ))}
+            </select>
+            <button
+              onClick={applyBulkCategory}
+              disabled={bulkBusy}
+              className="rounded bg-emerald-600 px-3 py-1 text-white hover:bg-emerald-700 disabled:opacity-50"
+            >
+              应用
+            </button>
+          </div>
+          <button
+            onClick={() => setSelected(new Set())}
+            className="text-gray-500 hover:text-gray-700"
+          >
+            取消选择
+          </button>
+        </div>
+      )}
+
       <div className="overflow-hidden rounded-lg border border-gray-200 bg-white">
         <table className="w-full text-sm">
           <thead className="bg-gray-50 text-left text-xs uppercase text-gray-500">
             <tr>
+              <th className="w-10 px-4 py-3">
+                <input
+                  type="checkbox"
+                  checked={rows.length > 0 && selected.size === rows.length}
+                  onChange={toggleAll}
+                  aria-label="全选"
+                />
+              </th>
               <th className="px-4 py-3">名称</th>
               <th className="px-4 py-3">品牌</th>
               <th className="px-4 py-3">条码</th>
@@ -104,13 +257,13 @@ export default function ProductList({
           <tbody className="divide-y divide-gray-100">
             {loading ? (
               <tr>
-                <td colSpan={7} className="px-4 py-8 text-center text-gray-400">
+                <td colSpan={8} className="px-4 py-8 text-center text-gray-400">
                   加载中…
                 </td>
               </tr>
             ) : rows.length === 0 ? (
               <tr>
-                <td colSpan={7} className="px-4 py-8 text-center text-gray-400">
+                <td colSpan={8} className="px-4 py-8 text-center text-gray-400">
                   暂无数据
                 </td>
               </tr>
@@ -118,9 +271,22 @@ export default function ProductList({
               rows.map((r) => (
                 <tr
                   key={r.id}
-                  onClick={() => onOpen(r.id)}
-                  className="cursor-pointer hover:bg-emerald-50/50"
+                  onClick={() => onOpen(r.id, rows.map((x) => x.id))}
+                  className={`cursor-pointer hover:bg-emerald-50/50 ${
+                    selected.has(r.id) ? "bg-emerald-50/60" : ""
+                  }`}
                 >
+                  <td
+                    className="px-4 py-3"
+                    onClick={(e) => e.stopPropagation()}
+                  >
+                    <input
+                      type="checkbox"
+                      checked={selected.has(r.id)}
+                      onChange={() => toggle(r.id)}
+                      aria-label="选择"
+                    />
+                  </td>
                   <td className="px-4 py-3 font-medium text-gray-800">{r.name}</td>
                   <td className="px-4 py-3 text-gray-600">{r.brand || "—"}</td>
                   <td className="px-4 py-3 font-mono text-xs text-gray-500">
@@ -154,7 +320,25 @@ export default function ProductList({
         </table>
       </div>
 
-      <div className="mt-4 flex items-center justify-end gap-2 text-sm text-gray-600">
+      <div className="mt-4 flex flex-wrap items-center justify-end gap-2 text-sm text-gray-600">
+        <div className="mr-auto flex items-center gap-1">
+          <span>每页</span>
+          <select
+            value={size}
+            onChange={(e) => {
+              setSize(Number(e.target.value));
+              setPage(1);
+            }}
+            className="rounded border border-gray-300 px-2 py-1"
+          >
+            {[20, 50, 100].map((n) => (
+              <option key={n} value={n}>
+                {n}
+              </option>
+            ))}
+          </select>
+          <span>条 · 共 {total} 条</span>
+        </div>
         <button
           disabled={page <= 1}
           onClick={() => setPage((p) => p - 1)}
@@ -172,6 +356,159 @@ export default function ProductList({
         >
           下一页
         </button>
+        <form
+          onSubmit={(e) => {
+            e.preventDefault();
+            const n = Number(jump);
+            if (Number.isFinite(n) && n >= 1) {
+              setPage(Math.min(Math.max(1, Math.trunc(n)), pages));
+              setJump("");
+            }
+          }}
+          className="flex items-center gap-1"
+        >
+          <span>跳至</span>
+          <input
+            value={jump}
+            onChange={(e) => setJump(e.target.value.replace(/[^0-9]/g, ""))}
+            placeholder={String(page)}
+            className="w-14 rounded border border-gray-300 px-2 py-1 text-center"
+            aria-label="跳转页码"
+          />
+          <button
+            type="submit"
+            className="rounded border border-gray-300 px-3 py-1 hover:bg-gray-50"
+          >
+            前往
+          </button>
+        </form>
+      </div>
+    </div>
+  );
+}
+
+function CreateProductModal({
+  onClose,
+  onCreated,
+}: {
+  onClose: () => void;
+  onCreated: (id: string) => void;
+}) {
+  const [name, setName] = useState("");
+  const [gtin, setGtin] = useState("");
+  const [brand, setBrand] = useState("");
+  const [categoryId, setCategoryId] = useState("");
+  const [brands, setBrands] = useState<Brand[]>([]);
+  const [categories, setCategories] = useState<Category[]>([]);
+  const [busy, setBusy] = useState(false);
+  const [error, setError] = useState("");
+
+  useEffect(() => {
+    api.listBrands().then((r) => setBrands(r.items)).catch(() => {});
+    api.listCategories().then((r) => setCategories(r.items)).catch(() => {});
+  }, []);
+
+  async function submit() {
+    if (!name.trim()) {
+      setError("名称不能为空");
+      return;
+    }
+    setBusy(true);
+    setError("");
+    try {
+      const created = await api.createProduct({
+        name: name.trim(),
+        gtin: gtin.trim() || null,
+        brand_name: brand.trim() || null,
+        category_id: categoryId || null,
+        status: "active",
+      });
+      onCreated(created.id);
+    } catch (e) {
+      setError(e instanceof ApiError ? e.message : "新建失败");
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  return (
+    <div className="fixed inset-0 z-20 flex items-center justify-center bg-black/30">
+      <div className="w-full max-w-md rounded-lg bg-white p-6 shadow-lg">
+        <h3 className="mb-4 text-base font-semibold text-gray-800">新建商品</h3>
+        {error && (
+          <div className="mb-3 rounded bg-red-50 px-3 py-2 text-sm text-red-600">
+            {error}
+          </div>
+        )}
+        <div className="space-y-3">
+          <label className="block">
+            <span className="text-xs text-gray-500">名称 *</span>
+            <input
+              autoFocus
+              className="mt-1 w-full rounded border border-gray-300 px-3 py-2 text-sm"
+              value={name}
+              onChange={(e) => setName(e.target.value)}
+              placeholder="商品名称"
+            />
+          </label>
+          <label className="block">
+            <span className="text-xs text-gray-500">条码 (GTIN，可选)</span>
+            <input
+              className="mt-1 w-full rounded border border-gray-300 px-3 py-2 text-sm"
+              value={gtin}
+              onChange={(e) => setGtin(e.target.value)}
+              placeholder="8/12/13/14 位"
+            />
+          </label>
+          <label className="block">
+            <span className="text-xs text-gray-500">品牌（不存在将自动创建，可选）</span>
+            <input
+              list="create-brand-list"
+              className="mt-1 w-full rounded border border-gray-300 px-3 py-2 text-sm"
+              value={brand}
+              onChange={(e) => setBrand(e.target.value)}
+            />
+            <datalist id="create-brand-list">
+              {brands.map((b) => (
+                <option key={b.id} value={b.name} />
+              ))}
+            </datalist>
+          </label>
+          <label className="block">
+            <span className="text-xs text-gray-500">品类（可选）</span>
+            <select
+              className="mt-1 w-full rounded border border-gray-300 bg-white px-3 py-2 text-sm"
+              value={categoryId}
+              onChange={(e) => setCategoryId(e.target.value)}
+            >
+              <option value="">（未分类）</option>
+              {categories.map((c) => (
+                <option key={c.id} value={c.id}>
+                  {"\u00A0".repeat(c.level * 2)}
+                  {c.name_zh} ({c.path})
+                </option>
+              ))}
+            </select>
+          </label>
+        </div>
+        <p className="mt-3 text-xs text-gray-400">
+          创建后将进入详情页，可继续补全营养、图片、多条码等信息。
+        </p>
+        <div className="mt-4 flex justify-end gap-2">
+          <button
+            onClick={onClose}
+            className="rounded border px-4 py-2 text-sm text-gray-600"
+          >
+            取消
+          </button>
+          <button
+            onClick={submit}
+            disabled={busy}
+            className="rounded bg-emerald-600 px-4 py-2 text-sm text-white hover:bg-emerald-700 disabled:opacity-60"
+          >
+            {busy ? "创建中…" : "创建并编辑"}
+          </button>
+        </div>
       </div>
     </div>
   );

admin-frontend/src/components/StatsPage.tsx

@@ -0,0 +1,125 @@
+import { useEffect, useState } from "react";
+import { api, ApiError } from "../api";
+import type { AdminStats } from "../types";
+import { BarChart3, Package, CheckCircle2, Tag, FolderTree, Inbox } from "lucide-react";
+
+const STATUS_LABEL: Record<string, string> = {
+  active: "在用",
+  merged: "已合并",
+  deprecated: "已停用",
+};
+
+function Card({
+  icon,
+  label,
+  value,
+  hint,
+}: {
+  icon: React.ReactNode;
+  label: string;
+  value: string | number;
+  hint?: string;
+}) {
+  return (
+    <div className="rounded-lg border bg-white p-5">
+      <div className="flex items-center gap-2 text-sm text-gray-500">
+        {icon}
+        {label}
+      </div>
+      <div className="mt-2 text-2xl font-semibold text-gray-800">{value}</div>
+      {hint && <div className="mt-1 text-xs text-gray-400">{hint}</div>}
+    </div>
+  );
+}
+
+export default function StatsPage() {
+  const [stats, setStats] = useState<AdminStats | null>(null);
+  const [error, setError] = useState("");
+
+  useEffect(() => {
+    api
+      .stats()
+      .then(setStats)
+      .catch((e) => setError(e instanceof ApiError ? e.message : "加载失败"));
+  }, []);
+
+  return (
+    <div className="mx-auto max-w-5xl">
+      <h2 className="mb-4 flex items-center gap-2 text-lg font-semibold text-gray-800">
+        <BarChart3 className="h-5 w-5 text-emerald-600" /> 数据概览
+      </h2>
+
+      {error && (
+        <div className="mb-3 rounded bg-red-50 px-4 py-2 text-sm text-red-700">{error}</div>
+      )}
+
+      {!stats ? (
+        <div className="text-sm text-gray-400">加载中…</div>
+      ) : (
+        <>
+          <div className="grid grid-cols-2 gap-4 md:grid-cols-3">
+            <Card
+              icon={<Package className="h-4 w-4" />}
+              label="商品总数"
+              value={stats.products.toLocaleString()}
+            />
+            <Card
+              icon={<CheckCircle2 className="h-4 w-4 text-emerald-600" />}
+              label="合格档案"
+              value={stats.qualified.toLocaleString()}
+              hint={`质量分 ≥ ${stats.min_score} 且在用`}
+            />
+            <Card
+              icon={<BarChart3 className="h-4 w-4" />}
+              label="平均质量分"
+              value={Math.round(stats.avg_quality * 100)}
+              hint="满分 100"
+            />
+            <Card
+              icon={<Tag className="h-4 w-4" />}
+              label="品牌数"
+              value={stats.brands.toLocaleString()}
+            />
+            <Card
+              icon={<FolderTree className="h-4 w-4" />}
+              label="分类数"
+              value={stats.categories.toLocaleString()}
+            />
+            <Card
+              icon={<Inbox className="h-4 w-4" />}
+              label="待审核投稿"
+              value={stats.pending_submissions.toLocaleString()}
+            />
+          </div>
+
+          <div className="mt-6 rounded-lg border bg-white p-5">
+            <h3 className="mb-3 text-sm font-medium text-gray-700">按状态分布</h3>
+            <div className="space-y-2">
+              {Object.keys(stats.by_status).length === 0 ? (
+                <div className="text-sm text-gray-400">暂无数据</div>
+              ) : (
+                Object.entries(stats.by_status).map(([st, n]) => {
+                  const pct = stats.products > 0 ? (n / stats.products) * 100 : 0;
+                  return (
+                    <div key={st} className="flex items-center gap-3 text-sm">
+                      <span className="w-16 text-gray-600">
+                        {STATUS_LABEL[st] || st}
+                      </span>
+                      <div className="h-3 flex-1 overflow-hidden rounded bg-gray-100">
+                        <div
+                          className="h-full bg-emerald-500"
+                          style={{ width: `${pct}%` }}
+                        />
+                      </div>
+                      <span className="w-12 text-right text-gray-500">{n}</span>
+                    </div>
+                  );
+                })
+              )}
+            </div>
+          </div>
+        </>
+      )}
+    </div>
+  );
+}

admin-frontend/src/components/SubmissionsPage.tsx

@@ -56,7 +56,7 @@ export default function SubmissionsPage({ onPending }: { onPending?: (n: number)
   }
 
   return (
-    <div>
+    <div className="mx-auto max-w-5xl">
       <div className="flex items-center gap-2 mb-4">
         {STATUS_TABS.map((t) => (
           <button
@@ -193,7 +193,7 @@ function SubmissionView({ id, onBack }: { id: string; onBack: () => void }) {
   const nutri = Object.entries(p.nutriments || {});
 
   return (
-    <div className="max-w-3xl">
+    <div className="mx-auto max-w-3xl">
       <button onClick={onBack} className="text-sm text-gray-500 flex items-center gap-1 mb-4">
         <ArrowLeft className="h-4 w-4" /> 返回投稿队列
       </button>

admin-frontend/src/types.ts

@@ -44,6 +44,8 @@ export interface ProductDetail {
   brand: string | null;
   category_id: string | null;
   category_path: string | null;
+  archive_kind: string;
+  attributes: Record<string, unknown>;
   net_content_value: number | null;
   net_content_unit: string | null;
   country_of_origin: string | null;
@@ -66,6 +68,7 @@ export interface ProductDetail {
 export interface Brand {
   id: string;
   name: string;
+  product_count: number;
 }
 
 export interface Category {
@@ -74,6 +77,31 @@ export interface Category {
   name_en: string | null;
   path: string;
   level: number;
+  parent_id: string | null;
+  gpc_brick_code: string | null;
+  archive_kind: string;
+  product_count: number;
+}
+
+export interface KindField {
+  kind: string;
+  field_key: string;
+  group_label: string;
+  label_zh: string;
+  field_type: string;
+  unit: string | null;
+  options: string[];
+  placeholder: string | null;
+  sort_order: number;
+  qualified: boolean;
+}
+
+export interface CategoryInput {
+  name_zh: string;
+  name_en?: string | null;
+  slug?: string | null;
+  parent_id?: string | null;
+  gpc_brick_code?: string | null;
 }
 
 export interface AuditEntry {
@@ -84,6 +112,27 @@ export interface AuditEntry {
   created_at: string;
 }
 
+export interface AuditLogRow {
+  id: string;
+  actor: string;
+  action: string;
+  entity: string;
+  entity_id: string | null;
+  fields: string[];
+  created_at: string;
+}
+
+export interface AdminStats {
+  products: number;
+  qualified: number;
+  min_score: number;
+  by_status: Record<string, number>;
+  brands: number;
+  categories: number;
+  pending_submissions: number;
+  avg_quality: number;
+}
+
 export interface SubmissionRow {
   id: string;
   gtin: string | null;
@@ -150,6 +199,7 @@ export interface ApiKey {
   owner_email: string | null;
   tier: string;
   rate_limit_per_min: number;
+  quota_total: number;
   revoked_at: string | null;
   created_by: string | null;
   created_at: string;

api/cmd/server/main.go

@@ -37,7 +37,8 @@ func main() {
 		log.Print("warning: Redis not configured; public API rate limiting disabled")
 	}
 	h := handler.New(store.New(pool), publicweb.Dist()).
-		WithRateLimit(limiter, cfg.AnonRateLimitPerMin)
+		WithRateLimit(limiter, cfg.AnonRateLimitPerMin).
+		WithQuotas(cfg.AnonTotalQuota, cfg.RegisteredRateLimitPerMin, cfg.RegisteredQuotaTotal)
 
 	srv := &http.Server{
 		Addr:              cfg.Addr,

api/internal/adminhandler/apikey.go

@@ -46,7 +46,7 @@ func (h *Handler) CreateAPIKey(w http.ResponseWriter, r *http.Request) {
 		writeError(w, http.StatusBadRequest, "bad_request", "名称不能为空")
 		return
 	}
-	if in.Tier != "" && in.Tier != "free" && in.Tier != "partner" && in.Tier != "internal" {
+	if in.Tier != "" && in.Tier != "free" && in.Tier != "registered" && in.Tier != "partner" && in.Tier != "internal" {
 		writeError(w, http.StatusBadRequest, "bad_request", "tier 取值无效")
 		return
 	}

api/internal/adminhandler/handler.go

@@ -64,7 +64,11 @@ func (h *Handler) Router() http.Handler {
 		r.Group(func(r chi.Router) {
 			r.Use(h.authn.Middleware)
 			r.Get("/api/me", h.Me)
+			r.Get("/api/stats", h.Stats)
+			r.Get("/api/audit", h.ListAllAudit)
 			r.Get("/api/products", h.ListProducts)
+			r.Post("/api/products", h.CreateProduct)
+			r.Post("/api/products/bulk", h.BulkProducts)
 			r.Get("/api/products/{id}", h.GetProduct)
 			r.Put("/api/products/{id}", h.UpdateProduct)
 			r.Get("/api/products/{id}/audit", h.ListAudit)
@@ -76,7 +80,15 @@ func (h *Handler) Router() http.Handler {
 			r.Delete("/api/products/{id}/barcodes/{barcodeID}", h.DeleteBarcode)
 			r.Post("/api/products/{id}/barcodes/{barcodeID}/primary", h.SetPrimaryBarcode)
 			r.Get("/api/brands", h.ListBrands)
+			r.Post("/api/brands", h.CreateBrand)
+			r.Put("/api/brands/{id}", h.UpdateBrand)
+			r.Post("/api/brands/{id}/merge", h.MergeBrands)
+			r.Delete("/api/brands/{id}", h.DeleteBrand)
+			r.Get("/api/kind-fields", h.ListKindFields)
 			r.Get("/api/categories", h.ListCategories)
+			r.Post("/api/categories", h.CreateCategory)
+			r.Put("/api/categories/{id}", h.UpdateCategory)
+			r.Delete("/api/categories/{id}", h.DeleteCategory)
 
 			r.Get("/api/submissions", h.ListSubmissions)
 			r.Get("/api/submissions/{id}", h.GetSubmission)
@@ -172,6 +184,99 @@ func (h *Handler) GetProduct(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, d)
 }
 
+// CreateProduct adds a new product with core fields; the rest is filled in via
+// the detail editor.
+func (h *Handler) CreateProduct(w http.ResponseWriter, r *http.Request) {
+	var in adminstore.ProductInput
+	if err := json.NewDecoder(r.Body).Decode(&in); err != nil {
+		writeError(w, http.StatusBadRequest, "bad_request", "invalid body")
+		return
+	}
+	if strings.TrimSpace(in.Name) == "" {
+		writeError(w, http.StatusBadRequest, "bad_request", "名称不能为空")
+		return
+	}
+	d, err := h.store.CreateProduct(r.Context(), auth.UserFrom(r.Context()), in)
+	if errors.Is(err, adminstore.ErrDuplicateGTIN) {
+		writeError(w, http.StatusConflict, "duplicate_gtin", "该条码(GTIN)已被其它商品使用")
+		return
+	}
+	if h.handleErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusCreated, d)
+}
+
+// Stats returns the dashboard overview counters.
+func (h *Handler) Stats(w http.ResponseWriter, r *http.Request) {
+	st, err := h.store.Stats(r.Context())
+	if h.handleErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusOK, st)
+}
+
+// ListAllAudit returns a page of the global operations audit log.
+func (h *Handler) ListAllAudit(w http.ResponseWriter, r *http.Request) {
+	page, size := pageParams(r)
+	items, total, err := h.store.ListAllAudit(r.Context(), size, (page-1)*size)
+	if h.handleErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{
+		"items": items, "page": page, "size": size, "total": total,
+	})
+}
+
+type bulkInput struct {
+	IDs        []string `json:"ids"`
+	Action     string   `json:"action"`
+	Status     string   `json:"status"`
+	CategoryID *string  `json:"category_id"`
+}
+
+// BulkProducts applies a status or category change to many products at once.
+func (h *Handler) BulkProducts(w http.ResponseWriter, r *http.Request) {
+	var in bulkInput
+	if err := json.NewDecoder(r.Body).Decode(&in); err != nil {
+		writeError(w, http.StatusBadRequest, "bad_request", "invalid body")
+		return
+	}
+	if len(in.IDs) == 0 {
+		writeError(w, http.StatusBadRequest, "bad_request", "未选择任何商品")
+		return
+	}
+	actor := auth.UserFrom(r.Context())
+	var (
+		affected int
+		err      error
+	)
+	switch in.Action {
+	case "status":
+		affected, err = h.store.BulkSetStatus(r.Context(), actor, in.IDs, in.Status)
+	case "category":
+		affected, err = h.store.BulkSetCategory(r.Context(), actor, in.IDs, in.CategoryID)
+	default:
+		writeError(w, http.StatusBadRequest, "bad_request", "未知的批量操作")
+		return
+	}
+	switch {
+	case errors.Is(err, adminstore.ErrInvalidStatus):
+		writeError(w, http.StatusBadRequest, "invalid_status", "无效的状态值")
+		return
+	case errors.Is(err, adminstore.ErrInvalidParent):
+		writeError(w, http.StatusBadRequest, "invalid_parent", "目标分类无效")
+		return
+	case errors.Is(err, adminstore.ErrNoTargets):
+		writeError(w, http.StatusBadRequest, "bad_request", "未选择任何商品")
+		return
+	}
+	if h.handleErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"status": "ok", "affected": affected})
+}
+
 // UpdateProduct applies an edit.
 func (h *Handler) UpdateProduct(w http.ResponseWriter, r *http.Request) {
 	var in adminstore.ProductInput
@@ -319,6 +424,20 @@ func (h *Handler) ListBrands(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, map[string]any{"items": items})
 }
 
+// ListKindFields returns the editable spec field template for an archive kind.
+func (h *Handler) ListKindFields(w http.ResponseWriter, r *http.Request) {
+	kind := strings.TrimSpace(r.URL.Query().Get("kind"))
+	if kind == "" {
+		writeError(w, http.StatusBadRequest, "bad_request", "缺少 kind 参数")
+		return
+	}
+	items, err := h.store.ListKindFields(r.Context(), kind)
+	if h.handleErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"items": items, "kind": kind})
+}
+
 // ListCategories returns category options.
 func (h *Handler) ListCategories(w http.ResponseWriter, r *http.Request) {
 	items, err := h.store.ListCategories(r.Context())
@@ -328,6 +447,164 @@ func (h *Handler) ListCategories(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, map[string]any{"items": items})
 }
 
+// CreateCategory adds a category node.
+func (h *Handler) CreateCategory(w http.ResponseWriter, r *http.Request) {
+	var in adminstore.CategoryInput
+	if err := json.NewDecoder(r.Body).Decode(&in); err != nil {
+		writeError(w, http.StatusBadRequest, "bad_request", "invalid body")
+		return
+	}
+	if strings.TrimSpace(in.NameZH) == "" {
+		writeError(w, http.StatusBadRequest, "bad_request", "分类名称不能为空")
+		return
+	}
+	c, err := h.store.CreateCategory(r.Context(), auth.UserFrom(r.Context()), in)
+	if h.handleCategoryErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusCreated, c)
+}
+
+// UpdateCategory renames and/or moves a category node.
+func (h *Handler) UpdateCategory(w http.ResponseWriter, r *http.Request) {
+	var in adminstore.CategoryInput
+	if err := json.NewDecoder(r.Body).Decode(&in); err != nil {
+		writeError(w, http.StatusBadRequest, "bad_request", "invalid body")
+		return
+	}
+	if strings.TrimSpace(in.NameZH) == "" {
+		writeError(w, http.StatusBadRequest, "bad_request", "分类名称不能为空")
+		return
+	}
+	c, err := h.store.UpdateCategory(r.Context(), chi.URLParam(r, "id"), auth.UserFrom(r.Context()), in)
+	if h.handleCategoryErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusOK, c)
+}
+
+// DeleteCategory removes a leaf category that no product uses.
+func (h *Handler) DeleteCategory(w http.ResponseWriter, r *http.Request) {
+	err := h.store.DeleteCategory(r.Context(), chi.URLParam(r, "id"), auth.UserFrom(r.Context()))
+	if h.handleCategoryErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]string{"status": "deleted"})
+}
+
+// handleCategoryErr maps category-specific errors to client statuses, falling
+// back to handleErr otherwise.
+func (h *Handler) handleCategoryErr(w http.ResponseWriter, err error) bool {
+	if err == nil {
+		return false
+	}
+	switch {
+	case errors.Is(err, adminstore.ErrDuplicatePath):
+		writeError(w, http.StatusConflict, "duplicate_path", "该分类路径已存在，请换一个英文标识(slug)")
+		return true
+	case errors.Is(err, adminstore.ErrCategoryHasChildren):
+		writeError(w, http.StatusConflict, "has_children", "该分类存在子分类，请先删除或移动其子分类")
+		return true
+	case errors.Is(err, adminstore.ErrCategoryInUse):
+		writeError(w, http.StatusConflict, "in_use", "仍有商品归属于该分类，请先改归其它分类")
+		return true
+	case errors.Is(err, adminstore.ErrInvalidParent):
+		writeError(w, http.StatusBadRequest, "invalid_parent", "上级分类无效（不存在或不能移动到自身/子级下）")
+		return true
+	}
+	return h.handleErr(w, err)
+}
+
+type brandInput struct {
+	Name string `json:"name"`
+}
+
+type brandMergeInput struct {
+	TargetID string `json:"target_id"`
+}
+
+// CreateBrand adds a brand.
+func (h *Handler) CreateBrand(w http.ResponseWriter, r *http.Request) {
+	var in brandInput
+	if err := json.NewDecoder(r.Body).Decode(&in); err != nil {
+		writeError(w, http.StatusBadRequest, "bad_request", "invalid body")
+		return
+	}
+	if strings.TrimSpace(in.Name) == "" {
+		writeError(w, http.StatusBadRequest, "bad_request", "品牌名称不能为空")
+		return
+	}
+	b, err := h.store.CreateBrand(r.Context(), auth.UserFrom(r.Context()), in.Name)
+	if h.handleBrandErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusCreated, b)
+}
+
+// UpdateBrand renames a brand.
+func (h *Handler) UpdateBrand(w http.ResponseWriter, r *http.Request) {
+	var in brandInput
+	if err := json.NewDecoder(r.Body).Decode(&in); err != nil {
+		writeError(w, http.StatusBadRequest, "bad_request", "invalid body")
+		return
+	}
+	if strings.TrimSpace(in.Name) == "" {
+		writeError(w, http.StatusBadRequest, "bad_request", "品牌名称不能为空")
+		return
+	}
+	b, err := h.store.UpdateBrand(r.Context(), chi.URLParam(r, "id"), auth.UserFrom(r.Context()), in.Name)
+	if h.handleBrandErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusOK, b)
+}
+
+// MergeBrands folds one brand's products into another, then deletes the source.
+func (h *Handler) MergeBrands(w http.ResponseWriter, r *http.Request) {
+	var in brandMergeInput
+	if err := json.NewDecoder(r.Body).Decode(&in); err != nil {
+		writeError(w, http.StatusBadRequest, "bad_request", "invalid body")
+		return
+	}
+	if strings.TrimSpace(in.TargetID) == "" {
+		writeError(w, http.StatusBadRequest, "bad_request", "请选择合并目标品牌")
+		return
+	}
+	b, err := h.store.MergeBrands(r.Context(), chi.URLParam(r, "id"), in.TargetID, auth.UserFrom(r.Context()))
+	if h.handleBrandErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusOK, b)
+}
+
+// DeleteBrand removes a brand no product references.
+func (h *Handler) DeleteBrand(w http.ResponseWriter, r *http.Request) {
+	err := h.store.DeleteBrand(r.Context(), chi.URLParam(r, "id"), auth.UserFrom(r.Context()))
+	if h.handleBrandErr(w, err) {
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]string{"status": "deleted"})
+}
+
+// handleBrandErr maps brand-specific errors to client statuses.
+func (h *Handler) handleBrandErr(w http.ResponseWriter, err error) bool {
+	if err == nil {
+		return false
+	}
+	switch {
+	case errors.Is(err, adminstore.ErrDuplicateBrand):
+		writeError(w, http.StatusConflict, "duplicate_brand", "该品牌名称已存在")
+		return true
+	case errors.Is(err, adminstore.ErrBrandInUse):
+		writeError(w, http.StatusConflict, "in_use", "仍有商品使用该品牌，请先改用其它品牌或合并")
+		return true
+	case errors.Is(err, adminstore.ErrInvalidMerge):
+		writeError(w, http.StatusBadRequest, "invalid_merge", "合并目标无效（不存在或与源品牌相同）")
+		return true
+	}
+	return h.handleErr(w, err)
+}
+
 // ---------- submissions ----------
 
 // CreateSubmission accepts an anonymous public contribution into the queue.

api/internal/adminstore/adminstore.go

@@ -64,10 +64,15 @@ func (s *Store) ListProducts(ctx context.Context, q string, limit, offset int) (
 		return nil, 0, err
 	}
 
+	qualified, err := s.kindQualifiedKeys(ctx, s.pool)
+	if err != nil {
+		return nil, 0, err
+	}
+
 	args = append(args, limit, offset)
 	sql := `
 SELECT p.id, p.gtin, p.name, b.name, c.path::text, p.status, p.quality_score,
-       p.updated_at,
+       p.updated_at, COALESCE(c.archive_kind, 'generic'), p.attributes,
        (p.brand_id IS NOT NULL) AS has_brand,
        (p.category_id IS NOT NULL) AS has_cat,
        (p.net_content_canonical IS NOT NULL) AS has_net,
@@ -91,13 +96,21 @@ LEFT JOIN food_detail f ON f.product_id = p.id ` + where +
 	for rows.Next() {
 		var r ProductRow
 		var hasBrand, hasCat, hasNet, hasCountry, hasNutri, hasIng, hasImg bool
+		var kind string
+		var attributes []byte
 		var updated time.Time
 		if err := rows.Scan(&r.ID, &r.GTIN, &r.Name, &r.Brand, &r.CategoryPath, &r.Status,
-			&r.QualityScore, &updated, &hasBrand, &hasCat, &hasNet, &hasCountry,
+			&r.QualityScore, &updated, &kind, &attributes,
+			&hasBrand, &hasCat, &hasNet, &hasCountry,
 			&hasNutri, &hasIng, &hasImg); err != nil {
 			return nil, 0, err
 		}
 		r.UpdatedAt = updated.Format(time.RFC3339)
+		attrs := map[string]any{}
+		if len(attributes) > 0 {
+			_ = json.Unmarshal(attributes, &attrs)
+		}
+		qkeys := qualified[kind]
 		present := map[string]bool{
 			"name":              r.Name != "",
 			"gtin":              r.GTIN != nil && *r.GTIN != "",
@@ -109,8 +122,11 @@ LEFT JOIN food_detail f ON f.product_id = p.id ` + where +
 			"ingredients":       hasIng,
 			"image":             hasImg,
 		}
+		for _, k := range qkeys {
+			present[k] = attrPresent(attrs, k)
+		}
 		r.Missing = []string{}
-		for _, f := range CompletenessFields {
+		for _, f := range completenessKeys(kind, qkeys) {
 			if !present[f] {
 				r.Missing = append(r.Missing, f)
 			}
@@ -150,6 +166,8 @@ type ProductDetail struct {
 	Brand           *string        `json:"brand"`
 	CategoryID      *string        `json:"category_id"`
 	CategoryPath    *string        `json:"category_path"`
+	ArchiveKind     string         `json:"archive_kind"`
+	Attributes      map[string]any `json:"attributes"`
 	NetContentValue *float64       `json:"net_content_value"`
 	NetContentUnit  *string        `json:"net_content_unit"`
 	CountryOfOrigin *string        `json:"country_of_origin"`
@@ -173,9 +191,11 @@ type ProductDetail struct {
 func (s *Store) GetProduct(ctx context.Context, id string) (*ProductDetail, error) {
 	var d ProductDetail
 	var nutriments []byte
+	var attributes []byte
 	var updated time.Time
 	err := s.pool.QueryRow(ctx, `
 SELECT p.id, p.gtin, p.name, p.brand_id, b.name, p.category_id, c.path::text,
+       COALESCE(c.archive_kind, 'generic'), p.attributes,
        p.net_content_value, p.net_content_unit, p.country_of_origin, p.status,
        p.quality_score, p.updated_at,
        f.ingredients_text, f.allergens, f.additives, f.nutriments,
@@ -186,6 +206,7 @@ LEFT JOIN category c ON c.id = p.category_id
 LEFT JOIN food_detail f ON f.product_id = p.id
 WHERE p.id = $1`, id).Scan(
 		&d.ID, &d.GTIN, &d.Name, &d.BrandID, &d.Brand, &d.CategoryID, &d.CategoryPath,
+		&d.ArchiveKind, &attributes,
 		&d.NetContentValue, &d.NetContentUnit, &d.CountryOfOrigin, &d.Status,
 		&d.QualityScore, &updated,
 		&d.IngredientsText, &d.Allergens, &d.Additives, &nutriments,
@@ -198,6 +219,10 @@ WHERE p.id = $1`, id).Scan(
 		return nil, err
 	}
 	d.UpdatedAt = updated.Format(time.RFC3339)
+	d.Attributes = map[string]any{}
+	if len(attributes) > 0 {
+		_ = json.Unmarshal(attributes, &d.Attributes)
+	}
 	if len(nutriments) > 0 {
 		_ = json.Unmarshal(nutriments, &d.Nutriments)
 	}
@@ -226,11 +251,15 @@ WHERE p.id = $1`, id).Scan(
 	}
 	d.MSRP = msrps
 
-	d.Missing = missingFromDetail(&d)
+	qualified, err := s.kindQualifiedKeys(ctx, s.pool)
+	if err != nil {
+		return nil, err
+	}
+	d.Missing = missingFromDetail(&d, qualified[d.ArchiveKind])
 	return &d, nil
 }
 
-func missingFromDetail(d *ProductDetail) []string {
+func missingFromDetail(d *ProductDetail, qualifiedAttrKeys []string) []string {
 	present := map[string]bool{
 		"name":              d.Name != "",
 		"gtin":              d.GTIN != nil && *d.GTIN != "",
@@ -242,8 +271,11 @@ func missingFromDetail(d *ProductDetail) []string {
 		"ingredients":       d.IngredientsText != nil && *d.IngredientsText != "",
 		"image":             len(d.Images) > 0,
 	}
+	for _, k := range qualifiedAttrKeys {
+		present[k] = attrPresent(d.Attributes, k)
+	}
 	missing := []string{}
-	for _, f := range CompletenessFields {
+	for _, f := range completenessKeys(d.ArchiveKind, qualifiedAttrKeys) {
 		if !present[f] {
 			missing = append(missing, f)
 		}

api/internal/adminstore/apikey.go

@@ -19,6 +19,7 @@ type APIKeyRow struct {
 	OwnerEmail      *string `json:"owner_email"`
 	Tier            string  `json:"tier"`
 	RateLimitPerMin int     `json:"rate_limit_per_min"`
+	QuotaTotal      int64   `json:"quota_total"`
 	RevokedAt       *string `json:"revoked_at"`
 	CreatedBy       *string `json:"created_by"`
 	CreatedAt       string  `json:"created_at"`
@@ -30,6 +31,7 @@ type APIKeyInput struct {
 	OwnerEmail      string `json:"owner_email"`
 	Tier            string `json:"tier"`
 	RateLimitPerMin int    `json:"rate_limit_per_min"`
+	QuotaTotal      int64  `json:"quota_total"`
 }
 
 // CreateAPIKey issues a new key, returning the one-time plaintext alongside the
@@ -43,6 +45,10 @@ func (s *Store) CreateAPIKey(ctx context.Context, in APIKeyInput, createdBy stri
 	if rate <= 0 {
 		rate = 120
 	}
+	quota := in.QuotaTotal
+	if quota < 0 {
+		quota = 0
+	}
 	var owner *string
 	if e := strings.TrimSpace(in.OwnerEmail); e != "" {
 		owner = &e
@@ -56,12 +62,12 @@ func (s *Store) CreateAPIKey(ctx context.Context, in APIKeyInput, createdBy stri
 	var revoked, created *time.Time
 	var createdByOut *string
 	err = s.pool.QueryRow(ctx, `
-INSERT INTO api_key (name, key_prefix, key_hash, owner_email, tier, rate_limit_per_min, created_by)
-VALUES ($1, $2, $3, $4, $5, $6, $7)
-RETURNING id, name, key_prefix, owner_email, tier, rate_limit_per_min, revoked_at, created_by, created_at`,
-		strings.TrimSpace(in.Name), prefix, hash, owner, tier, rate, createdBy,
+INSERT INTO api_key (name, key_prefix, key_hash, owner_email, tier, rate_limit_per_min, quota_total, created_by)
+VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
+RETURNING id, name, key_prefix, owner_email, tier, rate_limit_per_min, quota_total, revoked_at, created_by, created_at`,
+		strings.TrimSpace(in.Name), prefix, hash, owner, tier, rate, quota, createdBy,
 	).Scan(&row.ID, &row.Name, &row.KeyPrefix, &row.OwnerEmail, &row.Tier,
-		&row.RateLimitPerMin, &revoked, &createdByOut, &created)
+		&row.RateLimitPerMin, &row.QuotaTotal, &revoked, &createdByOut, &created)
 	if err != nil {
 		return "", row, err
 	}
@@ -75,7 +81,7 @@ RETURNING id, name, key_prefix, owner_email, tier, rate_limit_per_min, revoked_a
 // ListAPIKeys returns all keys (active first, newest first).
 func (s *Store) ListAPIKeys(ctx context.Context) ([]APIKeyRow, error) {
 	rows, err := s.pool.Query(ctx, `
-SELECT id, name, key_prefix, owner_email, tier, rate_limit_per_min, revoked_at, created_by, created_at
+SELECT id, name, key_prefix, owner_email, tier, rate_limit_per_min, quota_total, revoked_at, created_by, created_at
 FROM api_key
 ORDER BY (revoked_at IS NULL) DESC, created_at DESC`)
 	if err != nil {
@@ -87,7 +93,7 @@ ORDER BY (revoked_at IS NULL) DESC, created_at DESC`)
 		var r APIKeyRow
 		var revoked, created *time.Time
 		if err := rows.Scan(&r.ID, &r.Name, &r.KeyPrefix, &r.OwnerEmail, &r.Tier,
-			&r.RateLimitPerMin, &revoked, &r.CreatedBy, &created); err != nil {
+			&r.RateLimitPerMin, &r.QuotaTotal, &revoked, &r.CreatedBy, &created); err != nil {
 			return nil, err
 		}
 		if revoked != nil {

api/internal/adminstore/brand.go

@@ -0,0 +1,154 @@
+package adminstore
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strings"
+
+	"github.com/jackc/pgx/v5"
+)
+
+// Brand-management errors, mapped to client statuses by the handler.
+var (
+	// ErrDuplicateBrand is returned when a brand name already exists.
+	ErrDuplicateBrand = errors.New("duplicate brand name")
+	// ErrBrandInUse blocks deleting a brand still referenced by products.
+	ErrBrandInUse = errors.New("brand in use")
+	// ErrInvalidMerge is returned when a merge target is missing or equal to
+	// the source.
+	ErrInvalidMerge = errors.New("invalid merge target")
+)
+
+// CreateBrand inserts a new brand. Names are unique by normalized form.
+func (s *Store) CreateBrand(ctx context.Context, actor, name string) (*Brand, error) {
+	name = strings.TrimSpace(name)
+	if name == "" {
+		return nil, errors.New("name required")
+	}
+	var b Brand
+	err := s.pool.QueryRow(ctx,
+		`INSERT INTO brand (name, normalized_name) VALUES ($1, $2) RETURNING id, name, 0`,
+		name, normBrand(name)).Scan(&b.ID, &b.Name, &b.ProductCount)
+	if isUniqueViolation(err) {
+		return nil, ErrDuplicateBrand
+	}
+	if err != nil {
+		return nil, err
+	}
+	_ = s.writeAudit(ctx, actor, "create", "brand", &b.ID, []string{"name"}, nil, b)
+	return &b, nil
+}
+
+// UpdateBrand renames a brand, keeping the normalized name in sync.
+func (s *Store) UpdateBrand(ctx context.Context, id, actor, name string) (*Brand, error) {
+	name = strings.TrimSpace(name)
+	if name == "" {
+		return nil, errors.New("name required")
+	}
+	ct, err := s.pool.Exec(ctx,
+		"UPDATE brand SET name = $1, normalized_name = $2 WHERE id = $3",
+		name, normBrand(name), id)
+	if isUniqueViolation(err) {
+		return nil, ErrDuplicateBrand
+	}
+	if err != nil {
+		return nil, err
+	}
+	if ct.RowsAffected() == 0 {
+		return nil, ErrNotFound
+	}
+	out, err := s.getBrand(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+	_ = s.writeAudit(ctx, actor, "update", "brand", &id, []string{"name"}, nil, out)
+	return out, nil
+}
+
+// MergeBrands reassigns every product of src to dst, then deletes src. Useful
+// for collapsing duplicate brands (e.g. "可口可乐" and "Coca-Cola").
+func (s *Store) MergeBrands(ctx context.Context, srcID, dstID, actor string) (*Brand, error) {
+	if srcID == dstID {
+		return nil, ErrInvalidMerge
+	}
+	tx, err := s.pool.Begin(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer tx.Rollback(ctx)
+
+	var dstName string
+	err = tx.QueryRow(ctx, "SELECT name FROM brand WHERE id = $1", dstID).Scan(&dstName)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return nil, ErrInvalidMerge
+	}
+	if err != nil {
+		return nil, err
+	}
+	var srcName string
+	err = tx.QueryRow(ctx, "SELECT name FROM brand WHERE id = $1", srcID).Scan(&srcName)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return nil, ErrNotFound
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	if _, err := tx.Exec(ctx, "UPDATE product SET brand_id = $1 WHERE brand_id = $2", dstID, srcID); err != nil {
+		return nil, err
+	}
+	if _, err := tx.Exec(ctx, "DELETE FROM brand WHERE id = $1", srcID); err != nil {
+		return nil, err
+	}
+	if err := tx.Commit(ctx); err != nil {
+		return nil, err
+	}
+
+	out, err := s.getBrand(ctx, dstID)
+	if err != nil {
+		return nil, err
+	}
+	_ = s.writeAudit(ctx, actor, "merge", "brand", &srcID, []string{"name"},
+		map[string]string{"name": srcName},
+		map[string]string{"merged_into": dstName, "merged_into_id": dstID})
+	return out, nil
+}
+
+// DeleteBrand removes a brand not referenced by any product.
+func (s *Store) DeleteBrand(ctx context.Context, id, actor string) error {
+	before, err := s.getBrand(ctx, id)
+	if err != nil {
+		return err
+	}
+	if before.ProductCount > 0 {
+		return fmt.Errorf("%w: %d products", ErrBrandInUse, before.ProductCount)
+	}
+	ct, err := s.pool.Exec(ctx, "DELETE FROM brand WHERE id = $1", id)
+	if err != nil {
+		if isForeignKeyViolation(err) {
+			return ErrBrandInUse
+		}
+		return err
+	}
+	if ct.RowsAffected() == 0 {
+		return ErrNotFound
+	}
+	_ = s.writeAudit(ctx, actor, "delete", "brand", &id, []string{"name"}, before, nil)
+	return nil
+}
+
+func (s *Store) getBrand(ctx context.Context, id string) (*Brand, error) {
+	var b Brand
+	err := s.pool.QueryRow(ctx, `
+SELECT b.id, b.name,
+       (SELECT count(*) FROM product p WHERE p.brand_id = b.id)
+FROM brand b WHERE b.id = $1`, id).Scan(&b.ID, &b.Name, &b.ProductCount)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return nil, ErrNotFound
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &b, nil
+}

api/internal/adminstore/brand_test.go

@@ -0,0 +1,78 @@
+package adminstore
+
+import (
+	"context"
+	"errors"
+	"testing"
+)
+
+func TestBrandLifecycle(t *testing.T) {
+	s := newTestStore(t)
+	ctx := context.Background()
+
+	a, err := s.CreateBrand(ctx, "tester", "品牌A "+randomHex(4))
+	if err != nil {
+		t.Fatalf("create A: %v", err)
+	}
+	t.Cleanup(func() { _, _ = s.pool.Exec(ctx, "DELETE FROM brand WHERE id = $1", a.ID) })
+
+	b, err := s.CreateBrand(ctx, "tester", "品牌B "+randomHex(4))
+	if err != nil {
+		t.Fatalf("create B: %v", err)
+	}
+	t.Cleanup(func() { _, _ = s.pool.Exec(ctx, "DELETE FROM brand WHERE id = $1", b.ID) })
+
+	// Duplicate (normalized) name must be rejected.
+	if _, err := s.CreateBrand(ctx, "tester", "  "+a.Name+"  "); !errors.Is(err, ErrDuplicateBrand) {
+		t.Fatalf("expected ErrDuplicateBrand, got %v", err)
+	}
+
+	// Rename.
+	renamed, err := s.UpdateBrand(ctx, a.ID, "tester", "品牌A改名")
+	if err != nil {
+		t.Fatalf("rename: %v", err)
+	}
+	if renamed.Name != "品牌A改名" {
+		t.Fatalf("rename not applied: %q", renamed.Name)
+	}
+
+	// Attach a product to brand A so deletion is blocked and merge moves it.
+	var prodID string
+	err = s.pool.QueryRow(ctx,
+		"INSERT INTO product (name, brand_id, status) VALUES ($1,$2,'active') RETURNING id",
+		"测试商品 "+randomHex(4), a.ID).Scan(&prodID)
+	if err != nil {
+		t.Fatalf("insert product: %v", err)
+	}
+	t.Cleanup(func() { _, _ = s.pool.Exec(ctx, "DELETE FROM product WHERE id = $1", prodID) })
+
+	// Deleting an in-use brand must fail.
+	if err := s.DeleteBrand(ctx, a.ID, "tester"); !errors.Is(err, ErrBrandInUse) {
+		t.Fatalf("expected ErrBrandInUse, got %v", err)
+	}
+
+	// Merge A into B: product reassigned, A deleted.
+	merged, err := s.MergeBrands(ctx, a.ID, b.ID, "tester")
+	if err != nil {
+		t.Fatalf("merge: %v", err)
+	}
+	if merged.ID != b.ID || merged.ProductCount < 1 {
+		t.Fatalf("merge result wrong: %+v", merged)
+	}
+	if _, err := s.getBrand(ctx, a.ID); !errors.Is(err, ErrNotFound) {
+		t.Fatalf("source brand should be gone, got %v", err)
+	}
+
+	// Self-merge is invalid.
+	if _, err := s.MergeBrands(ctx, b.ID, b.ID, "tester"); !errors.Is(err, ErrInvalidMerge) {
+		t.Fatalf("expected ErrInvalidMerge, got %v", err)
+	}
+
+	// After moving the product away from B, B can be deleted.
+	if _, err := s.pool.Exec(ctx, "DELETE FROM product WHERE id = $1", prodID); err != nil {
+		t.Fatalf("cleanup product: %v", err)
+	}
+	if err := s.DeleteBrand(ctx, b.ID, "tester"); err != nil {
+		t.Fatalf("delete unused brand: %v", err)
+	}
+}

api/internal/adminstore/bulk.go

@@ -0,0 +1,80 @@
+package adminstore
+
+import (
+	"context"
+	"errors"
+)
+
+// Bulk-operation errors.
+var (
+	// ErrNoTargets is returned when a bulk request selects no products.
+	ErrNoTargets = errors.New("no products selected")
+	// ErrInvalidStatus is returned for an unknown product status value.
+	ErrInvalidStatus = errors.New("invalid status")
+)
+
+var validStatus = map[string]bool{"active": true, "merged": true, "deprecated": true}
+
+// BulkSetStatus updates the status of every selected product in one statement.
+func (s *Store) BulkSetStatus(ctx context.Context, actor string, ids []string, status string) (int, error) {
+	if len(ids) == 0 {
+		return 0, ErrNoTargets
+	}
+	if !validStatus[status] {
+		return 0, ErrInvalidStatus
+	}
+	ct, err := s.pool.Exec(ctx,
+		"UPDATE product SET status = $1 WHERE id = ANY($2)", status, ids)
+	if err != nil {
+		return 0, err
+	}
+	n := int(ct.RowsAffected())
+	_ = s.writeAudit(ctx, actor, "bulk_status", "product", nil,
+		[]string{"status"}, map[string]any{"ids": ids}, map[string]any{"status": status})
+	return n, nil
+}
+
+// BulkSetCategory reassigns the category of every selected product, syncing the
+// GPC brick code and recomputing quality for each one.
+func (s *Store) BulkSetCategory(ctx context.Context, actor string, ids []string, categoryID *string) (int, error) {
+	if len(ids) == 0 {
+		return 0, ErrNoTargets
+	}
+	tx, err := s.pool.Begin(ctx)
+	if err != nil {
+		return 0, err
+	}
+	defer tx.Rollback(ctx)
+
+	var gpc *string
+	if categoryID != nil && *categoryID != "" {
+		if err := tx.QueryRow(ctx, "SELECT gpc_brick_code FROM category WHERE id = $1", *categoryID).Scan(&gpc); err != nil {
+			return 0, ErrInvalidParent
+		}
+	} else {
+		categoryID = nil
+	}
+
+	ct, err := tx.Exec(ctx,
+		"UPDATE product SET category_id = $1, gpc_brick_code = $2 WHERE id = ANY($3)",
+		categoryID, gpc, ids)
+	if err != nil {
+		return 0, err
+	}
+	for _, id := range ids {
+		if _, err := s.recomputeQualityTx(ctx, tx, id); err != nil {
+			return 0, err
+		}
+	}
+	if err := tx.Commit(ctx); err != nil {
+		return 0, err
+	}
+	n := int(ct.RowsAffected())
+	cat := ""
+	if categoryID != nil {
+		cat = *categoryID
+	}
+	_ = s.writeAudit(ctx, actor, "bulk_category", "product", nil,
+		[]string{"category"}, map[string]any{"ids": ids}, map[string]any{"category_id": cat})
+	return n, nil
+}

api/internal/adminstore/category.go

@@ -0,0 +1,298 @@
+package adminstore
+
+import (
+	"context"
+	"crypto/rand"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"regexp"
+	"strings"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+)
+
+// randomHex returns n random lowercase hex characters for fallback ltree slugs.
+func randomHex(n int) string {
+	b := make([]byte, (n+1)/2)
+	if _, err := rand.Read(b); err != nil {
+		return "x"
+	}
+	return hex.EncodeToString(b)[:n]
+}
+
+// Category-management errors, mapped to client statuses by the handler.
+var (
+	// ErrDuplicatePath is returned when a category path already exists.
+	ErrDuplicatePath = errors.New("duplicate category path")
+	// ErrCategoryHasChildren blocks deleting a node that still has children.
+	ErrCategoryHasChildren = errors.New("category has children")
+	// ErrCategoryInUse blocks deleting a node still referenced by products.
+	ErrCategoryInUse = errors.New("category in use")
+	// ErrInvalidParent is returned for a missing parent or an illegal move
+	// (onto itself or one of its own descendants).
+	ErrInvalidParent = errors.New("invalid parent category")
+)
+
+// CategoryInput is the payload accepted when creating or editing a category.
+// Slug is the ltree label (ASCII); when empty it is derived from NameEN, then
+// from a random suffix, since ltree labels cannot contain CJK or spaces.
+type CategoryInput struct {
+	NameZH       string  `json:"name_zh"`
+	NameEN       *string `json:"name_en"`
+	Slug         *string `json:"slug"`
+	ParentID     *string `json:"parent_id"`
+	GPCBrickCode *string `json:"gpc_brick_code"`
+}
+
+var slugInvalid = regexp.MustCompile(`[^a-z0-9_]+`)
+
+// slugify converts a string into a valid ltree label ([a-z0-9_]).
+func slugify(s string) string {
+	s = strings.ToLower(strings.TrimSpace(s))
+	s = slugInvalid.ReplaceAllString(s, "_")
+	s = strings.Trim(s, "_")
+	for strings.Contains(s, "__") {
+		s = strings.ReplaceAll(s, "__", "_")
+	}
+	return s
+}
+
+// resolveSlug picks an ltree label from the explicit slug, then NameEN, then a
+// random fallback so a Chinese-only category still gets a valid path label.
+func resolveSlug(in CategoryInput) string {
+	if in.Slug != nil {
+		if s := slugify(*in.Slug); s != "" {
+			return s
+		}
+	}
+	if in.NameEN != nil {
+		if s := slugify(*in.NameEN); s != "" {
+			return s
+		}
+	}
+	return "cat_" + randomHex(6)
+}
+
+func trimPtr(p *string) *string {
+	if p == nil {
+		return nil
+	}
+	t := strings.TrimSpace(*p)
+	if t == "" {
+		return nil
+	}
+	return &t
+}
+
+// CreateCategory inserts a new category node. With no parent it becomes a root
+// (level 0); otherwise its path is parentPath.slug and level is parentLevel+1.
+func (s *Store) CreateCategory(ctx context.Context, actor string, in CategoryInput) (*Category, error) {
+	name := strings.TrimSpace(in.NameZH)
+	if name == "" {
+		return nil, errors.New("name_zh required")
+	}
+
+	parentPath := ""
+	parentLevel := -1
+	kind := DefaultKind
+	var parentID *string
+	if pid := trimPtr(in.ParentID); pid != nil {
+		var path string
+		var level int
+		err := s.pool.QueryRow(ctx, "SELECT path::text, level, archive_kind FROM category WHERE id = $1", *pid).Scan(&path, &level, &kind)
+		if errors.Is(err, pgx.ErrNoRows) {
+			return nil, ErrInvalidParent
+		}
+		if err != nil {
+			return nil, err
+		}
+		parentPath, parentLevel, parentID = path, level, pid
+	}
+
+	slug := resolveSlug(in)
+	path := slug
+	if parentPath != "" {
+		path = parentPath + "." + slug
+	}
+	level := parentLevel + 1
+
+	var c Category
+	err := s.pool.QueryRow(ctx, `
+INSERT INTO category (name_zh, name_en, parent_id, path, gpc_brick_code, level, archive_kind)
+VALUES ($1, $2, $3, $4::ltree, $5, $6, $7)
+RETURNING id, name_zh, name_en, path::text, level, parent_id::text, gpc_brick_code, archive_kind, 0`,
+		name, trimPtr(in.NameEN), parentID, path, trimPtr(in.GPCBrickCode), level, kind).
+		Scan(&c.ID, &c.NameZH, &c.NameEN, &c.Path, &c.Level, &c.ParentID, &c.GPCBrickCode, &c.ArchiveKind, &c.ProductCount)
+	if isUniqueViolation(err) {
+		return nil, ErrDuplicatePath
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	_ = s.writeAudit(ctx, actor, "create", "category", &c.ID, []string{"name_zh", "path"}, nil, c)
+	return &c, nil
+}
+
+// UpdateCategory renames a node and/or moves it under a new parent. Moving
+// rewrites the path of the node and every descendant via ltree, keeping level
+// in sync. Moving a node onto itself or a descendant is rejected.
+func (s *Store) UpdateCategory(ctx context.Context, id, actor string, in CategoryInput) (*Category, error) {
+	name := strings.TrimSpace(in.NameZH)
+	if name == "" {
+		return nil, errors.New("name_zh required")
+	}
+
+	tx, err := s.pool.Begin(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer tx.Rollback(ctx)
+
+	var oldPath string
+	var oldLevel int
+	var oldParent *string
+	err = tx.QueryRow(ctx, "SELECT path::text, level, parent_id::text FROM category WHERE id = $1", id).
+		Scan(&oldPath, &oldLevel, &oldParent)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return nil, ErrNotFound
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	if _, err := tx.Exec(ctx,
+		"UPDATE category SET name_zh = $1, name_en = $2, gpc_brick_code = $3 WHERE id = $4",
+		name, trimPtr(in.NameEN), trimPtr(in.GPCBrickCode), id); err != nil {
+		return nil, err
+	}
+
+	newParent := trimPtr(in.ParentID)
+	if !strEq(newParent, oldParent) {
+		if err := s.moveCategoryTx(ctx, tx, id, oldPath, newParent); err != nil {
+			return nil, err
+		}
+	}
+
+	if err := tx.Commit(ctx); err != nil {
+		return nil, err
+	}
+
+	out, err := s.getCategory(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+	_ = s.writeAudit(ctx, actor, "update", "category", &id, []string{"name_zh", "name_en", "gpc_brick_code", "parent_id"}, nil, out)
+	return out, nil
+}
+
+// moveCategoryTx re-parents a subtree. The node's slug (last path label) is
+// preserved; only its ancestor prefix and level change.
+func (s *Store) moveCategoryTx(ctx context.Context, tx pgx.Tx, id, oldPath string, newParent *string) error {
+	slug := oldPath
+	if i := strings.LastIndex(oldPath, "."); i >= 0 {
+		slug = oldPath[i+1:]
+	}
+
+	newBase := slug
+	if newParent != nil {
+		var parentPath string
+		err := tx.QueryRow(ctx, "SELECT path::text FROM category WHERE id = $1", *newParent).Scan(&parentPath)
+		if errors.Is(err, pgx.ErrNoRows) {
+			return ErrInvalidParent
+		}
+		if err != nil {
+			return err
+		}
+		// Disallow moving a node under itself or one of its descendants.
+		if parentPath == oldPath || strings.HasPrefix(parentPath, oldPath+".") {
+			return ErrInvalidParent
+		}
+		newBase = parentPath + "." + slug
+	}
+
+	// Rewrite the node and all descendants in one statement; level tracks depth.
+	_, err := tx.Exec(ctx, `
+UPDATE category
+SET path  = ($1::ltree || subpath(path, nlevel($2::ltree) - 1)),
+    level = nlevel($1::ltree) + (nlevel(path) - nlevel($2::ltree)) - 1
+WHERE path = $2::ltree OR path <@ $2::ltree`, newBase, oldPath)
+	if isUniqueViolation(err) {
+		return ErrDuplicatePath
+	}
+	if err != nil {
+		return err
+	}
+
+	_, err = tx.Exec(ctx, "UPDATE category SET parent_id = $1 WHERE id = $2", newParent, id)
+	return err
+}
+
+// DeleteCategory removes a leaf node not referenced by any product. Nodes with
+// children or in-use nodes are rejected with a specific error.
+func (s *Store) DeleteCategory(ctx context.Context, id, actor string) error {
+	before, err := s.getCategory(ctx, id)
+	if err != nil {
+		return err
+	}
+
+	var children int
+	if err := s.pool.QueryRow(ctx, "SELECT count(*) FROM category WHERE parent_id = $1", id).Scan(&children); err != nil {
+		return err
+	}
+	if children > 0 {
+		return ErrCategoryHasChildren
+	}
+
+	var products int
+	if err := s.pool.QueryRow(ctx, "SELECT count(*) FROM product WHERE category_id = $1", id).Scan(&products); err != nil {
+		return err
+	}
+	if products > 0 {
+		return fmt.Errorf("%w: %d products", ErrCategoryInUse, products)
+	}
+
+	ct, err := s.pool.Exec(ctx, "DELETE FROM category WHERE id = $1", id)
+	if err != nil {
+		// A concurrent product assignment can still trip the FK.
+		if isForeignKeyViolation(err) {
+			return ErrCategoryInUse
+		}
+		return err
+	}
+	if ct.RowsAffected() == 0 {
+		return ErrNotFound
+	}
+
+	_ = s.writeAudit(ctx, actor, "delete", "category", &id, []string{"path"}, before, nil)
+	return nil
+}
+
+func (s *Store) getCategory(ctx context.Context, id string) (*Category, error) {
+	var c Category
+	err := s.pool.QueryRow(ctx, `
+SELECT c.id, c.name_zh, c.name_en, c.path::text, c.level, c.parent_id::text,
+       c.gpc_brick_code, c.archive_kind,
+       (SELECT count(*) FROM product p WHERE p.category_id = c.id)
+FROM category c WHERE c.id = $1`, id).
+		Scan(&c.ID, &c.NameZH, &c.NameEN, &c.Path, &c.Level, &c.ParentID, &c.GPCBrickCode, &c.ArchiveKind, &c.ProductCount)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return nil, ErrNotFound
+	}
+	if err != nil {
+		return nil, err
+	}
+	return &c, nil
+}
+
+func isUniqueViolation(err error) bool {
+	var pgErr *pgconn.PgError
+	return errors.As(err, &pgErr) && pgErr.Code == "23505"
+}
+
+func isForeignKeyViolation(err error) bool {
+	var pgErr *pgconn.PgError
+	return errors.As(err, &pgErr) && pgErr.Code == "23503"
+}

api/internal/adminstore/category_test.go

@@ -0,0 +1,130 @@
+package adminstore
+
+import (
+	"context"
+	"errors"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+// newTestStore connects to the test database, skipping when it is unreachable
+// or migrations have not been applied.
+func newTestStore(t *testing.T) *Store {
+	t.Helper()
+	dsn := os.Getenv("OPENGOODS_DATABASE_URL")
+	if dsn == "" {
+		dsn = "postgres://opengoods:opengoods@localhost:5432/opengoods?sslmode=disable"
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+	pool, err := pgxpool.New(ctx, dsn)
+	if err != nil {
+		t.Skipf("no database: %v", err)
+	}
+	if err := pool.Ping(ctx); err != nil {
+		pool.Close()
+		t.Skipf("database not reachable: %v", err)
+	}
+	var hasTable bool
+	if err := pool.QueryRow(ctx, "SELECT to_regclass('public.category') IS NOT NULL").Scan(&hasTable); err != nil || !hasTable {
+		pool.Close()
+		t.Skip("migrations not applied (category missing)")
+	}
+	t.Cleanup(pool.Close)
+	return New(pool)
+}
+
+func ptr(s string) *string { return &s }
+
+func TestCategoryLifecycle(t *testing.T) {
+	s := newTestStore(t)
+	ctx := context.Background()
+
+	root, err := s.CreateCategory(ctx, "tester", CategoryInput{
+		NameZH: "测试根", Slug: ptr("test_root_" + randomHex(6)),
+	})
+	if err != nil {
+		t.Fatalf("create root: %v", err)
+	}
+	t.Cleanup(func() { _, _ = s.pool.Exec(ctx, "DELETE FROM category WHERE path <@ $1::ltree", root.Path) })
+
+	if root.Level != 0 || root.ParentID != nil {
+		t.Fatalf("root level/parent wrong: level=%d parent=%v", root.Level, root.ParentID)
+	}
+
+	child, err := s.CreateCategory(ctx, "tester", CategoryInput{
+		NameZH: "测试子", NameEN: ptr("Test Child"), ParentID: &root.ID,
+	})
+	if err != nil {
+		t.Fatalf("create child: %v", err)
+	}
+	if child.Level != 1 || child.ParentID == nil || *child.ParentID != root.ID {
+		t.Fatalf("child hierarchy wrong: %+v", child)
+	}
+
+	// Deleting a node with children must fail.
+	if err := s.DeleteCategory(ctx, root.ID, "tester"); !errors.Is(err, ErrCategoryHasChildren) {
+		t.Fatalf("expected ErrCategoryHasChildren, got %v", err)
+	}
+
+	// Rename child.
+	renamed, err := s.UpdateCategory(ctx, child.ID, "tester", CategoryInput{NameZH: "测试子-改名"})
+	if err != nil {
+		t.Fatalf("rename: %v", err)
+	}
+	if renamed.NameZH != "测试子-改名" {
+		t.Fatalf("rename not applied: %q", renamed.NameZH)
+	}
+
+	// Move child to a second root, descendants' path/level should follow.
+	root2, err := s.CreateCategory(ctx, "tester", CategoryInput{
+		NameZH: "测试根2", Slug: ptr("test_root2_" + randomHex(6)),
+	})
+	if err != nil {
+		t.Fatalf("create root2: %v", err)
+	}
+	t.Cleanup(func() { _, _ = s.pool.Exec(ctx, "DELETE FROM category WHERE path <@ $1::ltree", root2.Path) })
+
+	moved, err := s.UpdateCategory(ctx, child.ID, "tester", CategoryInput{NameZH: "测试子-改名", ParentID: &root2.ID})
+	if err != nil {
+		t.Fatalf("move: %v", err)
+	}
+	if moved.ParentID == nil || *moved.ParentID != root2.ID {
+		t.Fatalf("move parent wrong: %+v", moved)
+	}
+	if moved.Level != 1 {
+		t.Fatalf("moved level wrong: %d", moved.Level)
+	}
+
+	// Moving a node under itself must be rejected.
+	if _, err := s.UpdateCategory(ctx, root2.ID, "tester", CategoryInput{NameZH: "测试根2", ParentID: &child.ID}); !errors.Is(err, ErrInvalidParent) {
+		t.Fatalf("expected ErrInvalidParent for self-move, got %v", err)
+	}
+
+	// Duplicate path on create must be rejected.
+	if _, err := s.CreateCategory(ctx, "tester", CategoryInput{NameZH: "dup", Slug: ptr(root.Path)}); !errors.Is(err, ErrDuplicatePath) {
+		t.Fatalf("expected ErrDuplicatePath, got %v", err)
+	}
+
+	// Now the leaf can be deleted.
+	if err := s.DeleteCategory(ctx, child.ID, "tester"); err != nil {
+		t.Fatalf("delete leaf: %v", err)
+	}
+}
+
+func TestSlugify(t *testing.T) {
+	cases := map[string]string{
+		"Cooking Oil":  "cooking_oil",
+		"  Hello--Wld": "hello_wld",
+		"食品":           "",
+		"a__b":         "a_b",
+	}
+	for in, want := range cases {
+		if got := slugify(in); got != want {
+			t.Errorf("slugify(%q) = %q, want %q", in, got, want)
+		}
+	}
+}

api/internal/adminstore/kind.go

@@ -0,0 +1,101 @@
+package adminstore
+
+import "context"
+
+// DefaultKind is used for products whose category has no archive kind (or no
+// category at all).
+const DefaultKind = "generic"
+
+// FoodKind keeps the mature, dedicated food_detail path; every other kind is
+// driven generically by kind_field + product.attributes.
+const FoodKind = "food"
+
+// genericBaseFields are the core completeness fields for any non-food kind.
+// Food keeps its own richer CompletenessFields list.
+var genericBaseFields = []string{"name", "gtin", "brand", "category", "image"}
+
+// KindField describes one editable spec field for an archive kind. It drives
+// both the dynamic admin form and the kind-aware completeness computation.
+type KindField struct {
+	Kind        string   `json:"kind"`
+	FieldKey    string   `json:"field_key"`
+	GroupLabel  string   `json:"group_label"`
+	LabelZH     string   `json:"label_zh"`
+	FieldType   string   `json:"field_type"`
+	Unit        *string  `json:"unit"`
+	Options     []string `json:"options"`
+	Placeholder *string  `json:"placeholder"`
+	SortOrder   int      `json:"sort_order"`
+	Qualified   bool     `json:"qualified"`
+}
+
+// ListKindFields returns the ordered field template for one archive kind.
+func (s *Store) ListKindFields(ctx context.Context, kind string) ([]KindField, error) {
+	rows, err := s.pool.Query(ctx, `
+SELECT kind, field_key, group_label, label_zh, field_type, unit, options,
+       placeholder, sort_order, qualified
+FROM kind_field WHERE kind = $1 ORDER BY sort_order, field_key`, kind)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	out := []KindField{}
+	for rows.Next() {
+		var f KindField
+		if err := rows.Scan(&f.Kind, &f.FieldKey, &f.GroupLabel, &f.LabelZH,
+			&f.FieldType, &f.Unit, &f.Options, &f.Placeholder, &f.SortOrder,
+			&f.Qualified); err != nil {
+			return nil, err
+		}
+		out = append(out, f)
+	}
+	return out, rows.Err()
+}
+
+// kindQualifiedKeys returns, per kind, the attribute keys that count toward the
+// completeness/qualified score. Loaded in one query so list views stay cheap.
+func (s *Store) kindQualifiedKeys(ctx context.Context, q queryer) (map[string][]string, error) {
+	rows, err := s.pool.Query(ctx,
+		"SELECT kind, field_key FROM kind_field WHERE qualified ORDER BY sort_order, field_key")
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	m := map[string][]string{}
+	for rows.Next() {
+		var kind, key string
+		if err := rows.Scan(&kind, &key); err != nil {
+			return nil, err
+		}
+		m[kind] = append(m[kind], key)
+	}
+	return m, rows.Err()
+}
+
+// completenessKeys returns the ordered list of field keys that define a full
+// archive for the given kind.
+func completenessKeys(kind string, qualifiedAttrKeys []string) []string {
+	if kind == FoodKind {
+		return CompletenessFields
+	}
+	keys := make([]string, 0, len(genericBaseFields)+len(qualifiedAttrKeys))
+	keys = append(keys, genericBaseFields...)
+	keys = append(keys, qualifiedAttrKeys...)
+	return keys
+}
+
+// attrPresent reports whether an attribute value is meaningfully filled in.
+func attrPresent(attrs map[string]any, key string) bool {
+	v, ok := attrs[key]
+	if !ok || v == nil {
+		return false
+	}
+	switch t := v.(type) {
+	case string:
+		return t != ""
+	case []any:
+		return len(t) > 0
+	default:
+		return true
+	}
+}

api/internal/adminstore/kind_test.go

@@ -0,0 +1,119 @@
+package adminstore
+
+import (
+	"context"
+	"testing"
+)
+
+// contains reports whether s holds v.
+func contains(s []string, v string) bool {
+	for _, x := range s {
+		if x == v {
+			return true
+		}
+	}
+	return false
+}
+
+// electronicsCategoryID returns the seeded electronics.phone category id,
+// skipping the test when the archive-kind migration is not applied.
+func electronicsCategoryID(t *testing.T, s *Store) string {
+	t.Helper()
+	ctx := context.Background()
+	var hasTable bool
+	if err := s.pool.QueryRow(ctx, "SELECT to_regclass('public.kind_field') IS NOT NULL").Scan(&hasTable); err != nil || !hasTable {
+		t.Skip("archive-kind migration not applied (kind_field missing)")
+	}
+	var id string
+	err := s.pool.QueryRow(ctx, "SELECT id FROM category WHERE path = 'electronics.phone'::ltree").Scan(&id)
+	if err != nil {
+		t.Skipf("electronics.phone category not seeded: %v", err)
+	}
+	return id
+}
+
+func TestListKindFieldsElectronics(t *testing.T) {
+	s := newTestStore(t)
+	electronicsCategoryID(t, s) // ensures migration applied
+	fields, err := s.ListKindFields(context.Background(), "electronics")
+	if err != nil {
+		t.Fatalf("list kind fields: %v", err)
+	}
+	if len(fields) == 0 {
+		t.Fatal("expected seeded electronics fields, got none")
+	}
+	var sawQualified bool
+	for _, f := range fields {
+		if f.FieldKey == "model_number" && f.Qualified {
+			sawQualified = true
+		}
+	}
+	if !sawQualified {
+		t.Fatal("expected model_number to be a qualified field")
+	}
+}
+
+// TestElectronicsArchiveKind verifies a non-food product uses the electronics
+// completeness rules: food fields (nutriments/ingredients) are not required,
+// and qualified spec fields drive both "missing" and the quality score.
+func TestElectronicsArchiveKind(t *testing.T) {
+	s := newTestStore(t)
+	ctx := context.Background()
+	catID := electronicsCategoryID(t, s)
+
+	created, err := s.CreateProduct(ctx, "tester", ProductInput{
+		Name:       "测试手机 " + randomHex(6),
+		CategoryID: &catID,
+	})
+	if err != nil {
+		t.Fatalf("create product: %v", err)
+	}
+	t.Cleanup(func() { _, _ = s.pool.Exec(ctx, "DELETE FROM product WHERE id = $1", created.ID) })
+
+	if created.ArchiveKind != "electronics" {
+		t.Fatalf("archive_kind = %q, want electronics", created.ArchiveKind)
+	}
+	// Food-only completeness fields must not be required for electronics.
+	if contains(created.Missing, "nutriments") || contains(created.Missing, "ingredients") {
+		t.Fatalf("electronics product should not require food fields: missing=%v", created.Missing)
+	}
+	// Qualified spec fields should appear as missing while empty.
+	for _, k := range []string{"model_number", "ccc_cert", "screen_size"} {
+		if !contains(created.Missing, k) {
+			t.Fatalf("expected %q in missing, got %v", k, created.Missing)
+		}
+	}
+
+	scoreBefore := created.QualityScore
+
+	gtin := "69" + randomHex(11)
+	brand := "TestPhoneCo"
+	updated, err := s.UpdateProduct(ctx, created.ID, "tester", ProductInput{
+		Name:       created.Name,
+		GTIN:       &gtin,
+		BrandName:  &brand,
+		CategoryID: &catID,
+		Status:     "active",
+		Attributes: map[string]any{
+			"model_number": "X-100",
+			"ccc_cert":     "2024010101234567",
+			"screen_size":  "6.1",
+			"color":        "黑色",
+		},
+	})
+	if err != nil {
+		t.Fatalf("update product: %v", err)
+	}
+
+	if got := updated.Attributes["model_number"]; got != "X-100" {
+		t.Fatalf("attributes not persisted: %v", updated.Attributes)
+	}
+	for _, k := range []string{"model_number", "ccc_cert", "screen_size"} {
+		if contains(updated.Missing, k) {
+			t.Fatalf("%q should be filled, still missing: %v", k, updated.Missing)
+		}
+	}
+	if updated.QualityScore <= scoreBefore {
+		t.Fatalf("quality should rise after filling fields: before=%v after=%v", scoreBefore, updated.QualityScore)
+	}
+}

api/internal/adminstore/quality.go

@@ -2,6 +2,7 @@ package adminstore
 
 import (
 	"context"
+	"encoding/json"
 	"math"
 	"time"
 
@@ -58,35 +59,56 @@ func (s *Store) computeQuality(ctx context.Context, q queryer, productID string)
 	var netCanonical *float64
 	var ingredients *string
 	var hasNutri, hasImage bool
+	var kind string
+	var attributes []byte
 	err := q.QueryRow(ctx, `
 SELECT p.name, p.gtin, p.brand_id, p.category_id, p.net_content_canonical,
-       p.country_of_origin, f.ingredients_text,
+       p.country_of_origin, COALESCE(c.archive_kind, 'generic'), p.attributes,
+       f.ingredients_text,
        (f.nutriments IS NOT NULL AND f.nutriments::text <> '{}'),
        EXISTS (SELECT 1 FROM product_image pi WHERE pi.product_id = p.id)
-FROM product p LEFT JOIN food_detail f ON f.product_id = p.id
+FROM product p
+LEFT JOIN category c ON c.id = p.category_id
+LEFT JOIN food_detail f ON f.product_id = p.id
 WHERE p.id = $1`, productID).Scan(
 		&name, &gtin, &brandID, &categoryID, &netCanonical, &country,
-		&ingredients, &hasNutri, &hasImage)
+		&kind, &attributes, &ingredients, &hasNutri, &hasImage)
 	if err != nil {
 		return 0, err
 	}
 
+	attrs := map[string]any{}
+	if len(attributes) > 0 {
+		_ = json.Unmarshal(attributes, &attrs)
+	}
+	qualified, err := s.kindQualifiedKeys(ctx, s.pool)
+	if err != nil {
+		return 0, err
+	}
+	qkeys := qualified[kind]
+
+	known := map[string]bool{
+		"name":              name != nil && *name != "",
+		"gtin":              gtin != nil && *gtin != "",
+		"brand":             brandID != nil,
+		"category":          categoryID != nil,
+		"net_content":       netCanonical != nil,
+		"country_of_origin": country != nil && *country != "",
+		"nutriments":        hasNutri,
+		"ingredients":       ingredients != nil && *ingredients != "",
+		"image":             hasImage,
+	}
+	for _, k := range qkeys {
+		known[k] = attrPresent(attrs, k)
+	}
+	keys := completenessKeys(kind, qkeys)
 	present := 0
-	bump := func(ok bool) {
-		if ok {
+	for _, k := range keys {
+		if known[k] {
 			present++
 		}
 	}
-	bump(name != nil && *name != "")
-	bump(gtin != nil && *gtin != "")
-	bump(brandID != nil)
-	bump(categoryID != nil)
-	bump(netCanonical != nil)
-	bump(country != nil && *country != "")
-	bump(hasNutri)
-	bump(ingredients != nil && *ingredients != "")
-	bump(hasImage)
-	completeness := float64(present) / float64(len(CompletenessFields))
+	completeness := float64(present) / float64(len(keys))
 
 	var sourceCount int
 	var sourceTrust *float64

api/internal/adminstore/stats.go

@@ -0,0 +1,61 @@
+package adminstore
+
+import "context"
+
+// QualifiedMinScore is the quality_score threshold at or above which a product
+// counts as "qualified" (合格) in admin and public stats.
+const QualifiedMinScore = 0.6
+
+// AdminStats summarizes the catalog for the admin overview dashboard.
+type AdminStats struct {
+	Products   int            `json:"products"`
+	Qualified  int            `json:"qualified"`
+	MinScore   float64        `json:"min_score"`
+	ByStatus   map[string]int `json:"by_status"`
+	Brands     int            `json:"brands"`
+	Categories int            `json:"categories"`
+	Pending    int            `json:"pending_submissions"`
+	AvgQuality float64        `json:"avg_quality"`
+}
+
+// Stats gathers the dashboard counters in a handful of aggregate queries.
+func (s *Store) Stats(ctx context.Context) (*AdminStats, error) {
+	out := &AdminStats{MinScore: QualifiedMinScore, ByStatus: map[string]int{}}
+
+	if err := s.pool.QueryRow(ctx, `
+SELECT count(*),
+       count(*) FILTER (WHERE quality_score >= $1 AND status = 'active'),
+       COALESCE(avg(quality_score), 0)
+FROM product`, QualifiedMinScore).Scan(&out.Products, &out.Qualified, &out.AvgQuality); err != nil {
+		return nil, err
+	}
+
+	rows, err := s.pool.Query(ctx, "SELECT status, count(*) FROM product GROUP BY status")
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var st string
+		var n int
+		if err := rows.Scan(&st, &n); err != nil {
+			return nil, err
+		}
+		out.ByStatus[st] = n
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	if err := s.pool.QueryRow(ctx, "SELECT count(*) FROM brand").Scan(&out.Brands); err != nil {
+		return nil, err
+	}
+	if err := s.pool.QueryRow(ctx, "SELECT count(*) FROM category").Scan(&out.Categories); err != nil {
+		return nil, err
+	}
+	if err := s.pool.QueryRow(ctx,
+		"SELECT count(*) FROM submission WHERE status = 'pending'").Scan(&out.Pending); err != nil {
+		return nil, err
+	}
+	return out, nil
+}

api/internal/adminstore/stats_bulk_test.go

@@ -0,0 +1,71 @@
+package adminstore
+
+import (
+	"context"
+	"testing"
+)
+
+func TestStatsAndBulk(t *testing.T) {
+	s := newTestStore(t)
+	ctx := context.Background()
+
+	base, err := s.Stats(ctx)
+	if err != nil {
+		t.Fatalf("stats: %v", err)
+	}
+
+	var p1, p2 string
+	if err := s.pool.QueryRow(ctx,
+		"INSERT INTO product (name, status) VALUES ($1,'active') RETURNING id",
+		"批量测试1 "+randomHex(4)).Scan(&p1); err != nil {
+		t.Fatalf("insert p1: %v", err)
+	}
+	if err := s.pool.QueryRow(ctx,
+		"INSERT INTO product (name, status) VALUES ($1,'active') RETURNING id",
+		"批量测试2 "+randomHex(4)).Scan(&p2); err != nil {
+		t.Fatalf("insert p2: %v", err)
+	}
+	t.Cleanup(func() { _, _ = s.pool.Exec(ctx, "DELETE FROM product WHERE id = ANY($1)", []string{p1, p2}) })
+
+	after, err := s.Stats(ctx)
+	if err != nil {
+		t.Fatalf("stats after: %v", err)
+	}
+	if after.Products != base.Products+2 {
+		t.Fatalf("product count: got %d want %d", after.Products, base.Products+2)
+	}
+
+	// Bulk set status to deprecated.
+	n, err := s.BulkSetStatus(ctx, "tester", []string{p1, p2}, "deprecated")
+	if err != nil || n != 2 {
+		t.Fatalf("bulk status: n=%d err=%v", n, err)
+	}
+	var deprecated int
+	if err := s.pool.QueryRow(ctx,
+		"SELECT count(*) FROM product WHERE id = ANY($1) AND status='deprecated'",
+		[]string{p1, p2}).Scan(&deprecated); err != nil {
+		t.Fatalf("verify: %v", err)
+	}
+	if deprecated != 2 {
+		t.Fatalf("expected 2 deprecated, got %d", deprecated)
+	}
+
+	// Invalid status rejected.
+	if _, err := s.BulkSetStatus(ctx, "tester", []string{p1}, "nope"); err != ErrInvalidStatus {
+		t.Fatalf("expected ErrInvalidStatus, got %v", err)
+	}
+
+	// Empty selection rejected.
+	if _, err := s.BulkSetStatus(ctx, "tester", nil, "active"); err != ErrNoTargets {
+		t.Fatalf("expected ErrNoTargets, got %v", err)
+	}
+
+	// Global audit log should contain the bulk_status entry.
+	rows, total, err := s.ListAllAudit(ctx, 10, 0)
+	if err != nil {
+		t.Fatalf("audit: %v", err)
+	}
+	if total == 0 || len(rows) == 0 {
+		t.Fatalf("expected audit rows, got total=%d", total)
+	}
+}

api/internal/adminstore/write.go

@@ -27,6 +27,9 @@ type ProductInput struct {
 	NutritionBasis  *string        `json:"nutrition_basis"`
 	ServingSize     *string        `json:"serving_size"`
 	NutriScore      *string        `json:"nutri_score"`
+	// Attributes carries non-food spec values (driven by kind_field) for the
+	// generic archive kinds. Nil means "leave unchanged".
+	Attributes map[string]any `json:"attributes"`
 }
 
 func normBrand(name string) string { return strings.Join(strings.Fields(strings.ToLower(name)), " ") }
@@ -86,10 +89,11 @@ func (s *Store) UpdateProduct(ctx context.Context, id, actor string, in ProductI
 		brandID = &bid
 	}
 
-	// Resolve category gpc brick code.
+	// Resolve category gpc brick code + archive kind.
 	var gpc *string
+	kind := DefaultKind
 	if in.CategoryID != nil && *in.CategoryID != "" {
-		if err := tx.QueryRow(ctx, "SELECT gpc_brick_code FROM category WHERE id = $1", *in.CategoryID).Scan(&gpc); err != nil && !errors.Is(err, pgx.ErrNoRows) {
+		if err := tx.QueryRow(ctx, "SELECT gpc_brick_code, archive_kind FROM category WHERE id = $1", *in.CategoryID).Scan(&gpc, &kind); err != nil && !errors.Is(err, pgx.ErrNoRows) {
 			return nil, err
 		}
 	}
@@ -116,19 +120,28 @@ WHERE id=$11`,
 		return nil, err
 	}
 
-	var nutriJSON []byte
-	if in.Nutriments != nil {
-		nutriJSON, _ = json.Marshal(in.Nutriments)
+	// Non-food spec values live in product.attributes (nil means unchanged).
+	if in.Attributes != nil {
+		attrJSON, _ := json.Marshal(in.Attributes)
+		if _, err = tx.Exec(ctx, "UPDATE product SET attributes=$1 WHERE id=$2", attrJSON, id); err != nil {
+			return nil, err
+		}
 	}
-	allergens := in.Allergens
-	if allergens == nil {
-		allergens = []string{}
-	}
-	additives := in.Additives
-	if additives == nil {
-		additives = []string{}
-	}
-	_, err = tx.Exec(ctx, `
+
+	if kind == FoodKind {
+		var nutriJSON []byte
+		if in.Nutriments != nil {
+			nutriJSON, _ = json.Marshal(in.Nutriments)
+		}
+		allergens := in.Allergens
+		if allergens == nil {
+			allergens = []string{}
+		}
+		additives := in.Additives
+		if additives == nil {
+			additives = []string{}
+		}
+		_, err = tx.Exec(ctx, `
 INSERT INTO food_detail (product_id, ingredients_text, allergens, additives,
    nutriments, nutrition_basis, serving_size, nutri_score)
 VALUES ($1,$2,$3,$4,$5,$6,$7,$8)
@@ -140,10 +153,11 @@ ON CONFLICT (product_id) DO UPDATE SET
    nutrition_basis=EXCLUDED.nutrition_basis,
    serving_size=EXCLUDED.serving_size,
    nutri_score=EXCLUDED.nutri_score`,
-		id, in.IngredientsText, allergens, additives,
-		nutriJSON, in.NutritionBasis, in.ServingSize, in.NutriScore)
-	if err != nil {
-		return nil, err
+			id, in.IngredientsText, allergens, additives,
+			nutriJSON, in.NutritionBasis, in.ServingSize, in.NutriScore)
+		if err != nil {
+			return nil, err
+		}
 	}
 
 	if _, err := s.recomputeQualityTx(ctx, tx, id); err != nil {
@@ -170,6 +184,79 @@ ON CONFLICT (product_id) DO UPDATE SET
 	return after, nil
 }
 
+// ErrDuplicateGTIN is returned when a product GTIN already exists.
+var ErrDuplicateGTIN = errors.New("duplicate gtin")
+
+// CreateProduct inserts a new product from the admin UI. Only the core fields
+// are required; the operator completes the rest in the detail editor.
+func (s *Store) CreateProduct(ctx context.Context, actor string, in ProductInput) (*ProductDetail, error) {
+	if strings.TrimSpace(in.Name) == "" {
+		return nil, errors.New("name required")
+	}
+	tx, err := s.pool.Begin(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer tx.Rollback(ctx)
+
+	brandID := in.BrandID
+	if in.BrandName != nil && strings.TrimSpace(*in.BrandName) != "" {
+		bid, err := s.ensureBrand(ctx, tx, strings.TrimSpace(*in.BrandName))
+		if err != nil {
+			return nil, err
+		}
+		brandID = &bid
+	}
+
+	var gpc *string
+	if in.CategoryID != nil && *in.CategoryID != "" {
+		if err := tx.QueryRow(ctx, "SELECT gpc_brick_code FROM category WHERE id = $1", *in.CategoryID).Scan(&gpc); err != nil && !errors.Is(err, pgx.ErrNoRows) {
+			return nil, err
+		}
+	}
+
+	canonical, err := s.netCanonical(ctx, tx, in.NetContentValue, in.NetContentUnit)
+	if err != nil {
+		return nil, err
+	}
+
+	status := in.Status
+	if status == "" {
+		status = "active"
+	}
+
+	var id string
+	err = tx.QueryRow(ctx, `
+INSERT INTO product (gtin, name, brand_id, category_id, gpc_brick_code,
+   net_content_value, net_content_unit, net_content_canonical,
+   country_of_origin, status)
+VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10)
+RETURNING id`,
+		in.GTIN, in.Name, brandID, in.CategoryID, gpc,
+		in.NetContentValue, in.NetContentUnit, canonical,
+		in.CountryOfOrigin, status).Scan(&id)
+	if isUniqueViolation(err) {
+		return nil, ErrDuplicateGTIN
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	if _, err := s.recomputeQualityTx(ctx, tx, id); err != nil {
+		return nil, err
+	}
+	if err := tx.Commit(ctx); err != nil {
+		return nil, err
+	}
+
+	after, err := s.GetProduct(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+	_ = s.writeAudit(ctx, actor, "create", "product", &id, []string{"name"}, nil, after)
+	return after, nil
+}
+
 func strEq(a, b *string) bool {
 	if a == nil && b == nil {
 		return true
@@ -211,6 +298,9 @@ func diffFields(a, b *ProductDetail) []string {
 	add("nutrition_basis", strEq(a.NutritionBasis, b.NutritionBasis))
 	add("serving_size", strEq(a.ServingSize, b.ServingSize))
 	add("nutri_score", strEq(a.NutriScore, b.NutriScore))
+	aa, _ := json.Marshal(a.Attributes)
+	ab, _ := json.Marshal(b.Attributes)
+	add("attributes", string(aa) == string(ab))
 	return changed
 }
 
@@ -330,15 +420,21 @@ func (s *Store) DeleteMSRP(ctx context.Context, productID, msrpID, actor string)
 
 // ---------- dictionaries ----------
 
-// Brand is a brand option for the edit form.
+// Brand is a brand option for the edit form and the management view.
 type Brand struct {
-	ID   string `json:"id"`
-	Name string `json:"name"`
+	ID           string `json:"id"`
+	Name         string `json:"name"`
+	ProductCount int    `json:"product_count"`
 }
 
-// ListBrands returns all brands ordered by name.
+// ListBrands returns all brands ordered by name, with the number of products
+// referencing each one.
 func (s *Store) ListBrands(ctx context.Context) ([]Brand, error) {
-	rows, err := s.pool.Query(ctx, "SELECT id, name FROM brand ORDER BY name")
+	rows, err := s.pool.Query(ctx, `
+SELECT b.id, b.name,
+       (SELECT count(*) FROM product p WHERE p.brand_id = b.id) AS product_count
+FROM brand b
+ORDER BY b.name`)
 	if err != nil {
 		return nil, err
 	}
@@ -346,7 +442,7 @@ func (s *Store) ListBrands(ctx context.Context) ([]Brand, error) {
 	out := []Brand{}
 	for rows.Next() {
 		var b Brand
-		if err := rows.Scan(&b.ID, &b.Name); err != nil {
+		if err := rows.Scan(&b.ID, &b.Name, &b.ProductCount); err != nil {
 			return nil, err
 		}
 		out = append(out, b)
@@ -354,19 +450,28 @@ func (s *Store) ListBrands(ctx context.Context) ([]Brand, error) {
 	return out, rows.Err()
 }
 
-// Category is a category option for the edit form.
+// Category is a category option for the edit form and the management view.
 type Category struct {
-	ID     string  `json:"id"`
-	NameZH string  `json:"name_zh"`
-	NameEN *string `json:"name_en"`
-	Path   string  `json:"path"`
-	Level  int     `json:"level"`
+	ID           string  `json:"id"`
+	NameZH       string  `json:"name_zh"`
+	NameEN       *string `json:"name_en"`
+	Path         string  `json:"path"`
+	Level        int     `json:"level"`
+	ParentID     *string `json:"parent_id"`
+	GPCBrickCode *string `json:"gpc_brick_code"`
+	ArchiveKind  string  `json:"archive_kind"`
+	ProductCount int     `json:"product_count"`
 }
 
-// ListCategories returns the full category tree.
+// ListCategories returns the full category tree (path order) with the number of
+// products directly assigned to each node.
 func (s *Store) ListCategories(ctx context.Context) ([]Category, error) {
-	rows, err := s.pool.Query(ctx,
-		"SELECT id, name_zh, name_en, path::text, level FROM category ORDER BY path")
+	rows, err := s.pool.Query(ctx, `
+SELECT c.id, c.name_zh, c.name_en, c.path::text, c.level, c.parent_id::text,
+       c.gpc_brick_code, c.archive_kind,
+       (SELECT count(*) FROM product p WHERE p.category_id = c.id) AS product_count
+FROM category c
+ORDER BY c.path`)
 	if err != nil {
 		return nil, err
 	}
@@ -374,7 +479,8 @@ func (s *Store) ListCategories(ctx context.Context) ([]Category, error) {
 	out := []Category{}
 	for rows.Next() {
 		var c Category
-		if err := rows.Scan(&c.ID, &c.NameZH, &c.NameEN, &c.Path, &c.Level); err != nil {
+		if err := rows.Scan(&c.ID, &c.NameZH, &c.NameEN, &c.Path, &c.Level,
+			&c.ParentID, &c.GPCBrickCode, &c.ArchiveKind, &c.ProductCount); err != nil {
 			return nil, err
 		}
 		out = append(out, c)
@@ -393,6 +499,44 @@ type AuditEntry struct {
 	CreatedAt string   `json:"created_at"`
 }
 
+// AuditLogRow is one global audit-log row for the operations log view.
+type AuditLogRow struct {
+	ID        string   `json:"id"`
+	Actor     string   `json:"actor"`
+	Action    string   `json:"action"`
+	Entity    string   `json:"entity"`
+	EntityID  *string  `json:"entity_id"`
+	Fields    []string `json:"fields"`
+	CreatedAt string   `json:"created_at"`
+}
+
+// ListAllAudit returns a page of the global audit log, newest first, along with
+// the total row count.
+func (s *Store) ListAllAudit(ctx context.Context, limit, offset int) ([]AuditLogRow, int, error) {
+	var total int
+	if err := s.pool.QueryRow(ctx, "SELECT count(*) FROM audit_log").Scan(&total); err != nil {
+		return nil, 0, err
+	}
+	rows, err := s.pool.Query(ctx, `
+SELECT id, actor, action, entity, entity_id::text, fields, created_at::text
+FROM audit_log
+ORDER BY created_at DESC
+LIMIT $1 OFFSET $2`, limit, offset)
+	if err != nil {
+		return nil, 0, err
+	}
+	defer rows.Close()
+	out := []AuditLogRow{}
+	for rows.Next() {
+		var e AuditLogRow
+		if err := rows.Scan(&e.ID, &e.Actor, &e.Action, &e.Entity, &e.EntityID, &e.Fields, &e.CreatedAt); err != nil {
+			return nil, 0, err
+		}
+		out = append(out, e)
+	}
+	return out, total, rows.Err()
+}
+
 // ListAudit returns audit history for one product, newest first.
 func (s *Store) ListAudit(ctx context.Context, productID string, limit int) ([]AuditEntry, error) {
 	rows, err := s.pool.Query(ctx, `

api/internal/config/config.go

@@ -9,19 +9,25 @@ import (
 // Values are read from environment variables with sensible defaults so the
 // server can boot in a local Docker Compose setup without extra configuration.
 type Config struct {
-	Addr                string
-	DatabaseURL         string
-	RedisURL            string
-	AnonRateLimitPerMin int
+	Addr                      string
+	DatabaseURL               string
+	RedisURL                  string
+	AnonRateLimitPerMin       int
+	AnonTotalQuota            int
+	RegisteredRateLimitPerMin int
+	RegisteredQuotaTotal      int
 }
 
 // Load reads configuration from the environment.
 func Load() Config {
 	return Config{
-		Addr:                getenv("OPENGOODS_ADDR", ":8080"),
-		DatabaseURL:         getenv("OPENGOODS_DATABASE_URL", "postgres://opengoods:opengoods@localhost:5432/opengoods?sslmode=disable"),
-		RedisURL:            getenv("OPENGOODS_REDIS_URL", "redis://localhost:6379/0"),
-		AnonRateLimitPerMin: getenvInt("OPENGOODS_ANON_RATE_LIMIT_PER_MIN", 60),
+		Addr:                      getenv("OPENGOODS_ADDR", ":8080"),
+		DatabaseURL:               getenv("OPENGOODS_DATABASE_URL", "postgres://opengoods:opengoods@localhost:5432/opengoods?sslmode=disable"),
+		RedisURL:                  getenv("OPENGOODS_REDIS_URL", "redis://localhost:6379/0"),
+		AnonRateLimitPerMin:       getenvInt("OPENGOODS_ANON_RATE_LIMIT_PER_MIN", 60),
+		AnonTotalQuota:            getenvInt("OPENGOODS_ANON_TOTAL_QUOTA", 1000),
+		RegisteredRateLimitPerMin: getenvInt("OPENGOODS_REGISTERED_RATE_LIMIT_PER_MIN", 300),
+		RegisteredQuotaTotal:      getenvInt("OPENGOODS_REGISTERED_QUOTA_TOTAL", 100000),
 	}
 }
 

api/internal/handler/account.go

@@ -0,0 +1,128 @@
+package handler
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+	"regexp"
+	"strings"
+
+	"github.com/baicai2026-baicai/goods/api/internal/store"
+)
+
+// emailRe is a deliberately permissive sanity check; real validation is the
+// unique constraint plus the user being able to receive their own key.
+var emailRe = regexp.MustCompile(`^[^@\s]+@[^@\s]+\.[^@\s]+$`)
+
+const minPasswordLen = 8
+
+type credentials struct {
+	Email    string `json:"email"`
+	Password string `json:"password"`
+}
+
+func decodeCredentials(w http.ResponseWriter, r *http.Request) (credentials, bool) {
+	var c credentials
+	if err := json.NewDecoder(http.MaxBytesReader(w, r.Body, 4096)).Decode(&c); err != nil {
+		writeError(w, r, http.StatusBadRequest, "invalid_body", "请求格式无效")
+		return credentials{}, false
+	}
+	c.Email = strings.TrimSpace(c.Email)
+	if !emailRe.MatchString(c.Email) {
+		writeError(w, r, http.StatusBadRequest, "invalid_email", "邮箱格式无效")
+		return credentials{}, false
+	}
+	if len(c.Password) < minPasswordLen {
+		writeError(w, r, http.StatusBadRequest, "weak_password", "密码至少需要 8 位")
+		return credentials{}, false
+	}
+	return c, true
+}
+
+// keyResponse is returned whenever a fresh plaintext key is issued; the key is
+// shown exactly once and cannot be recovered afterwards.
+type keyResponse struct {
+	Email           string `json:"email"`
+	APIKey          string `json:"api_key"`
+	KeyPrefix       string `json:"key_prefix"`
+	RateLimitPerMin int    `json:"rate_limit_per_min"`
+	QuotaTotal      int64  `json:"quota_total"`
+}
+
+// Register creates an account and issues its first API key. POST {email, password}.
+func (h *Handler) Register(w http.ResponseWriter, r *http.Request) {
+	c, ok := decodeCredentials(w, r)
+	if !ok {
+		return
+	}
+	key, acct, err := h.store.RegisterUser(r.Context(), c.Email, c.Password, h.regRatePerMin, h.regQuotaTotal)
+	if errors.Is(err, store.ErrEmailTaken) {
+		writeError(w, r, http.StatusConflict, "email_taken", "该邮箱已注册，请直接登录查看或重置密钥")
+		return
+	}
+	if h.handleErr(w, r, err) {
+		return
+	}
+	writeJSON(w, http.StatusCreated, keyResponse{
+		Email:           acct.Email,
+		APIKey:          key,
+		KeyPrefix:       acct.KeyPrefix,
+		RateLimitPerMin: acct.RateLimitPerMin,
+		QuotaTotal:      acct.QuotaTotal,
+	})
+}
+
+// AccountInfo verifies credentials and returns the account's key metadata plus
+// cumulative usage. POST {email, password}. The plaintext key is not returned.
+func (h *Handler) AccountInfo(w http.ResponseWriter, r *http.Request) {
+	c, ok := decodeCredentials(w, r)
+	if !ok {
+		return
+	}
+	acct, err := h.store.Authenticate(r.Context(), c.Email, c.Password)
+	if errors.Is(err, store.ErrNotFound) {
+		writeError(w, r, http.StatusUnauthorized, "invalid_credentials", "邮箱或密码错误")
+		return
+	}
+	if h.handleErr(w, r, err) {
+		return
+	}
+	used := h.limiter.TotalUsed(r.Context(), acct.KeyID)
+	remaining := acct.QuotaTotal - used
+	if remaining < 0 {
+		remaining = 0
+	}
+	writeJSON(w, http.StatusOK, map[string]any{
+		"email":              acct.Email,
+		"key_prefix":         acct.KeyPrefix,
+		"rate_limit_per_min": acct.RateLimitPerMin,
+		"quota_total":        acct.QuotaTotal,
+		"quota_used":         used,
+		"quota_remaining":    remaining,
+	})
+}
+
+// RegenerateKey revokes the account's current key and issues a new one, carrying
+// over cumulative usage so the quota cannot be reset. POST {email, password}.
+func (h *Handler) RegenerateKey(w http.ResponseWriter, r *http.Request) {
+	c, ok := decodeCredentials(w, r)
+	if !ok {
+		return
+	}
+	key, acct, oldKeyID, err := h.store.RegenerateKey(r.Context(), c.Email, c.Password, h.regRatePerMin, h.regQuotaTotal)
+	if errors.Is(err, store.ErrNotFound) {
+		writeError(w, r, http.StatusUnauthorized, "invalid_credentials", "邮箱或密码错误")
+		return
+	}
+	if h.handleErr(w, r, err) {
+		return
+	}
+	h.limiter.CopyTotal(r.Context(), oldKeyID, acct.KeyID)
+	writeJSON(w, http.StatusOK, keyResponse{
+		Email:           acct.Email,
+		APIKey:          key,
+		KeyPrefix:       acct.KeyPrefix,
+		RateLimitPerMin: acct.RateLimitPerMin,
+		QuotaTotal:      acct.QuotaTotal,
+	})
+}

api/internal/handler/account_db_test.go

@@ -0,0 +1,149 @@
+package handler
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+	"github.com/redis/go-redis/v9"
+
+	"github.com/baicai2026-baicai/goods/api/internal/ratelimit"
+	"github.com/baicai2026-baicai/goods/api/internal/store"
+)
+
+func cleanupCounter(t *testing.T, subject string) {
+	t.Helper()
+	redisURL := os.Getenv("OPENGOODS_REDIS_URL")
+	if redisURL == "" {
+		redisURL = "redis://localhost:6379/0"
+	}
+	opt, err := redis.ParseURL(redisURL)
+	if err != nil {
+		return
+	}
+	rdb := redis.NewClient(opt)
+	defer rdb.Close()
+	rdb.Del(context.Background(), "usage:total:"+subject)
+}
+
+// newQuotaHandler builds a handler backed by the test DB and a live Redis
+// limiter, with a small anonymous quota so exhaustion is cheap to exercise.
+func newQuotaHandler(t *testing.T, anonQuota int) *Handler {
+	t.Helper()
+	dsn := os.Getenv("OPENGOODS_DATABASE_URL")
+	if dsn == "" {
+		dsn = "postgres://opengoods:opengoods@localhost:5432/opengoods?sslmode=disable"
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+	pool, err := pgxpool.New(ctx, dsn)
+	if err != nil {
+		t.Skipf("no database: %v", err)
+	}
+	if err := pool.Ping(ctx); err != nil {
+		pool.Close()
+		t.Skipf("database not reachable: %v", err)
+	}
+	var hasUser bool
+	if err := pool.QueryRow(ctx, "SELECT to_regclass('public.app_user') IS NOT NULL").Scan(&hasUser); err != nil || !hasUser {
+		pool.Close()
+		t.Skip("migrations not applied")
+	}
+	redisURL := os.Getenv("OPENGOODS_REDIS_URL")
+	if redisURL == "" {
+		redisURL = "redis://localhost:6379/0"
+	}
+	limiter := ratelimit.New(redisURL)
+	pingCtx, pingCancel := context.WithTimeout(context.Background(), time.Second)
+	defer pingCancel()
+	if err := limiter.Ping(pingCtx); err != nil {
+		pool.Close()
+		t.Skipf("redis not reachable: %v", err)
+	}
+	t.Cleanup(pool.Close)
+	return New(store.New(pool), nil).
+		WithRateLimit(limiter, 1000).
+		WithQuotas(anonQuota, 300, 100000)
+}
+
+func cleanupAccount(t *testing.T, email string) {
+	t.Helper()
+	dsn := os.Getenv("OPENGOODS_DATABASE_URL")
+	if dsn == "" {
+		dsn = "postgres://opengoods:opengoods@localhost:5432/opengoods?sslmode=disable"
+	}
+	ctx := context.Background()
+	pool, err := pgxpool.New(ctx, dsn)
+	if err != nil {
+		return
+	}
+	defer pool.Close()
+	_, _ = pool.Exec(ctx, "DELETE FROM app_user WHERE lower(email)=lower($1)", email)
+	_, _ = pool.Exec(ctx, "DELETE FROM api_key WHERE owner_email=$1", email)
+}
+
+func TestAnonTotalQuotaExhausts(t *testing.T) {
+	h := newQuotaHandler(t, 3)
+	// Unique client IP so the lifetime counter starts fresh for this test; the
+	// counter never expires, so drop it afterwards to keep runs independent.
+	n := time.Now().UnixNano()
+	ip := fmt.Sprintf("203.%d.%d.%d", n/65536%256, n/256%256, n%256)
+	t.Cleanup(func() { cleanupCounter(t, "ip:"+ip) })
+	call := func() *httptest.ResponseRecorder {
+		req := httptest.NewRequest(http.MethodGet, "/api/"+APIVersion+"/stats", nil)
+		req.RemoteAddr = ip + ":12345"
+		rec := httptest.NewRecorder()
+		h.Router().ServeHTTP(rec, req)
+		return rec
+	}
+	for i := 1; i <= 3; i++ {
+		if rec := call(); rec.Code != http.StatusOK {
+			t.Fatalf("call %d should be allowed, got %d (%s)", i, rec.Code, rec.Body.String())
+		}
+	}
+	rec := call()
+	if rec.Code != http.StatusForbidden {
+		t.Fatalf("4th call should be 403 quota_exhausted, got %d (%s)", rec.Code, rec.Body.String())
+	}
+	if !strings.Contains(rec.Body.String(), "quota_exhausted") {
+		t.Fatalf("expected quota_exhausted error, got %s", rec.Body.String())
+	}
+}
+
+func TestRegisterIssuesHigherQuotaKey(t *testing.T) {
+	h := newQuotaHandler(t, 1000)
+	email := fmt.Sprintf("h-user-%d@example.com", time.Now().UnixNano())
+	t.Cleanup(func() { cleanupAccount(t, email) })
+
+	body := fmt.Sprintf(`{"email":%q,"password":"supersecret"}`, email)
+	req := httptest.NewRequest(http.MethodPost, "/api/"+APIVersion+"/register", strings.NewReader(body))
+	req.RemoteAddr = "198.51.100.7:9999"
+	rec := httptest.NewRecorder()
+	h.Router().ServeHTTP(rec, req)
+	if rec.Code != http.StatusCreated {
+		t.Fatalf("register status = %d (%s)", rec.Code, rec.Body.String())
+	}
+	var resp keyResponse
+	if err := json.NewDecoder(rec.Body).Decode(&resp); err != nil {
+		t.Fatal(err)
+	}
+	if resp.APIKey == "" || resp.QuotaTotal != 100000 || resp.RateLimitPerMin != 300 {
+		t.Fatalf("unexpected register response: %+v", resp)
+	}
+
+	// A second registration with the same email conflicts.
+	req2 := httptest.NewRequest(http.MethodPost, "/api/"+APIVersion+"/register", strings.NewReader(body))
+	req2.RemoteAddr = "198.51.100.7:9999"
+	rec2 := httptest.NewRecorder()
+	h.Router().ServeHTTP(rec2, req2)
+	if rec2.Code != http.StatusConflict {
+		t.Fatalf("duplicate register status = %d (%s)", rec2.Code, rec2.Body.String())
+	}
+}

api/internal/handler/handler.go

@@ -26,6 +26,10 @@ var openAPISpec []byte
 // APIVersion is the current public API version prefix.
 const APIVersion = "v1"
 
+// QualifiedMinScore is the quality_score threshold at or above which a product
+// record is considered "qualified" (合格) for public stats.
+const QualifiedMinScore = 0.6
+
 const (
 	defaultPageSize = 20
 	maxPageSize     = 100
@@ -33,20 +37,43 @@ const (
 	// defaultAnonLimit is the per-minute request budget for unauthenticated
 	// callers (identified by client IP) when none is configured.
 	defaultAnonLimit = 60
+
+	// defaultAnonTotalQuota is the lifetime number of calls an anonymous caller
+	// (by IP) may make before being asked to register for a higher quota.
+	defaultAnonTotalQuota = 1000
+
+	// defaultRegRatePerMin / defaultRegQuotaTotal are the per-minute budget and
+	// cumulative quota granted to a self-registered API key.
+	defaultRegRatePerMin = 300
+	defaultRegQuotaTotal = 100000
+
+	// registerRatePerMin caps account registration/login attempts per IP to
+	// curb abuse; these endpoints sit outside the metered quota group.
+	registerRatePerMin = 10
 )
 
 // Handler holds dependencies shared by the HTTP routes.
 type Handler struct {
-	store     *store.Store
-	spa       fs.FS
-	limiter   *ratelimit.Limiter
-	anonLimit int
+	store          *store.Store
+	spa            fs.FS
+	limiter        *ratelimit.Limiter
+	anonLimit      int
+	anonTotalQuota int64
+	regRatePerMin  int
+	regQuotaTotal  int64
 }
 
 // New constructs a Handler backed by the given store. spa may be nil (JSON-only).
 // Rate limiting is disabled until WithRateLimit is called.
 func New(s *store.Store, spa fs.FS) *Handler {
-	return &Handler{store: s, spa: spa, anonLimit: defaultAnonLimit}
+	return &Handler{
+		store:          s,
+		spa:            spa,
+		anonLimit:      defaultAnonLimit,
+		anonTotalQuota: defaultAnonTotalQuota,
+		regRatePerMin:  defaultRegRatePerMin,
+		regQuotaTotal:  defaultRegQuotaTotal,
+	}
 }
 
 // WithRateLimit attaches a Redis-backed limiter and the anonymous per-minute
@@ -60,6 +87,22 @@ func (h *Handler) WithRateLimit(l *ratelimit.Limiter, anonPerMin int) *Handler {
 	return h
 }
 
+// WithQuotas configures the cumulative free quota for anonymous callers and the
+// per-minute rate + cumulative quota self-registered keys receive. Non-positive
+// values keep the defaults.
+func (h *Handler) WithQuotas(anonTotal, regPerMin, regTotal int) *Handler {
+	if anonTotal > 0 {
+		h.anonTotalQuota = int64(anonTotal)
+	}
+	if regPerMin > 0 {
+		h.regRatePerMin = regPerMin
+	}
+	if regTotal > 0 {
+		h.regQuotaTotal = int64(regTotal)
+	}
+	return h
+}
+
 // Router builds the top-level HTTP handler with middleware and routes mounted.
 func (h *Handler) Router() http.Handler {
 	r := chi.NewRouter()
@@ -85,6 +128,17 @@ func (h *Handler) Router() http.Handler {
 			r.Get("/brands", h.ListBrands)
 			r.Get("/categories", h.ListCategories)
 			r.Get("/sources/{id}", h.SourceByID)
+			r.Get("/stats", h.Stats)
+		})
+
+		// Self-service account routes. Lightly IP-throttled to curb abuse but
+		// outside the metered quota group so a user can always register or
+		// check their key even after exhausting the free anonymous quota.
+		r.Group(func(r chi.Router) {
+			r.Use(h.registerLimit)
+			r.Post("/register", h.Register)
+			r.Post("/account", h.AccountInfo)
+			r.Post("/account/regenerate", h.RegenerateKey)
 		})
 	})
 
@@ -122,6 +176,15 @@ func (h *Handler) Healthz(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, map[string]string{"status": "ok"})
 }
 
+// Stats returns catalog totals and the count of qualified records.
+func (h *Handler) Stats(w http.ResponseWriter, r *http.Request) {
+	st, err := h.store.Stats(r.Context(), QualifiedMinScore)
+	if h.handleErr(w, r, err) {
+		return
+	}
+	writeJSON(w, http.StatusOK, st)
+}
+
 // OpenAPI serves the embedded OpenAPI 3 specification for the public API.
 func (h *Handler) OpenAPI(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/json; charset=utf-8")

api/internal/handler/middleware.go

@@ -24,8 +24,11 @@ const apiKeyIDKey ctxKey = 0
 // are set on every response; over-budget callers get 429 + Retry-After.
 func (h *Handler) rateLimit(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		id := "ip:" + clientIP(r)
+		ip := clientIP(r)
+		id := "ip:" + ip
+		subject := "ip:" + ip // cumulative-quota counter subject
 		limit := h.anonLimit
+		quota := h.anonTotalQuota
 		keyID := ""
 
 		if raw := presentedKey(r); raw != "" {
@@ -45,6 +48,8 @@ func (h *Handler) rateLimit(next http.Handler) http.Handler {
 			keyID = k.ID
 			limit = k.RateLimitPerMin
 			id = "key:" + k.ID
+			subject = k.ID
+			quota = k.QuotaTotal
 		}
 
 		res := h.limiter.Allow(r.Context(), id, limit, time.Minute)
@@ -61,8 +66,36 @@ func (h *Handler) rateLimit(next http.Handler) http.Handler {
 			return
 		}
 
+		// Attribute one call to the caller's lifetime counter, then enforce the
+		// cumulative quota (quota <= 0 means unlimited). Keys also get daily and
+		// last-used stats recorded for the admin console.
+		var used int64
 		if keyID != "" {
 			h.limiter.RecordUsage(r.Context(), keyID)
+			used = h.limiter.TotalUsed(r.Context(), keyID)
+		} else {
+			used = h.limiter.IncrTotal(r.Context(), subject)
+		}
+		if quota > 0 {
+			remaining := quota - used
+			if remaining < 0 {
+				remaining = 0
+			}
+			w.Header().Set("X-Quota-Limit", strconv.FormatInt(quota, 10))
+			w.Header().Set("X-Quota-Used", strconv.FormatInt(used, 10))
+			w.Header().Set("X-Quota-Remaining", strconv.FormatInt(remaining, 10))
+			if used > quota {
+				if keyID == "" {
+					writeError(w, r, http.StatusForbidden, "quota_exhausted",
+						"免费额度（共 "+strconv.FormatInt(quota, 10)+" 次）已用尽，请注册账号获取更高配额的 API 密钥")
+				} else {
+					writeError(w, r, http.StatusForbidden, "quota_exhausted", "API 密钥配额已用尽")
+				}
+				return
+			}
+		}
+
+		if keyID != "" {
 			next.ServeHTTP(w, r.WithContext(context.WithValue(r.Context(), apiKeyIDKey, keyID)))
 			return
 		}
@@ -70,6 +103,25 @@ func (h *Handler) rateLimit(next http.Handler) http.Handler {
 	})
 }
 
+// registerLimit throttles self-service account endpoints per client IP without
+// consuming the metered free quota, so a caller can still register or recover
+// their key after exhausting the anonymous quota.
+func (h *Handler) registerLimit(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		res := h.limiter.Allow(r.Context(), "register:"+clientIP(r), h.regRatePerMin, time.Minute)
+		if !res.Allowed {
+			retry := res.ResetUnix - time.Now().Unix()
+			if retry < 1 {
+				retry = 1
+			}
+			w.Header().Set("Retry-After", strconv.FormatInt(retry, 10))
+			writeError(w, r, http.StatusTooManyRequests, "rate_limited", "操作过于频繁，请稍后再试")
+			return
+		}
+		next.ServeHTTP(w, r)
+	})
+}
+
 // presentedKey extracts an API key from the X-API-Key header or a Bearer token.
 func presentedKey(r *http.Request) string {
 	if v := strings.TrimSpace(r.Header.Get("X-API-Key")); v != "" {

api/internal/handler/openapi.json

@@ -10,7 +10,8 @@
   "tags": [
     { "name": "products" },
     { "name": "catalog" },
-    { "name": "meta" }
+    { "name": "meta" },
+    { "name": "account" }
   ],
   "security": [{ "ApiKeyHeader": [] }, { "BearerKey": [] }, {}],
   "paths": {
@@ -114,6 +115,35 @@
         "parameters": [{ "name": "id", "in": "path", "required": true, "schema": { "type": "string", "format": "uuid" } }],
         "responses": { "200": { "description": "Source" }, "404": { "$ref": "#/components/responses/NotFound" } }
       }
+    },
+    "/register": {
+      "post": {
+        "tags": ["account"],
+        "summary": "Register an account and issue an API key",
+        "description": "Self-service registration; returns the plaintext API key exactly once.",
+        "security": [],
+        "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": ["email", "password"], "properties": { "email": { "type": "string", "format": "email" }, "password": { "type": "string", "minLength": 8 } } } } } },
+        "responses": { "201": { "description": "Account created; plaintext key returned once" }, "400": { "description": "Invalid email or weak password" }, "409": { "description": "Email already registered" } }
+      }
+    },
+    "/account": {
+      "post": {
+        "tags": ["account"],
+        "summary": "View account key metadata and cumulative quota usage",
+        "security": [],
+        "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": ["email", "password"], "properties": { "email": { "type": "string", "format": "email" }, "password": { "type": "string" } } } } } },
+        "responses": { "200": { "description": "Account info with quota usage" }, "401": { "description": "Invalid credentials" } }
+      }
+    },
+    "/account/regenerate": {
+      "post": {
+        "tags": ["account"],
+        "summary": "Revoke the current key and issue a new one",
+        "description": "Cumulative usage carries over; returns the plaintext key exactly once.",
+        "security": [],
+        "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": ["email", "password"], "properties": { "email": { "type": "string", "format": "email" }, "password": { "type": "string" } } } } } },
+        "responses": { "200": { "description": "New plaintext key returned once" }, "401": { "description": "Invalid credentials" } }
+      }
     }
   },
   "components": {

api/internal/ratelimit/ratelimit.go

@@ -116,6 +116,45 @@ func (l *Limiter) RecordUsage(ctx context.Context, keyID string) {
 	_, _ = pipe.Exec(ctx)
 }
 
+// IncrTotal increments the lifetime call counter for subject and returns the
+// new total. The counter never expires; it is the cumulative number of calls
+// attributed to a caller (an API key id, or "ip:<addr>" for anonymous callers).
+// Fails open returning 0 on any error so quota enforcement never takes the API
+// down.
+func (l *Limiter) IncrTotal(ctx context.Context, subject string) int64 {
+	if !l.Enabled() || subject == "" {
+		return 0
+	}
+	n, err := l.rdb.Incr(ctx, "usage:total:"+subject).Result()
+	if err != nil {
+		return 0
+	}
+	return n
+}
+
+// CopyTotal carries a lifetime counter from one subject to another, used when a
+// key is regenerated so a caller cannot reset their cumulative quota. Best
+// effort: a missing or zero source counter is a no-op.
+func (l *Limiter) CopyTotal(ctx context.Context, from, to string) {
+	if !l.Enabled() || from == "" || to == "" {
+		return
+	}
+	n, err := l.rdb.Get(ctx, "usage:total:"+from).Int64()
+	if err != nil || n == 0 {
+		return
+	}
+	l.rdb.Set(ctx, "usage:total:"+to, n, 0)
+}
+
+// TotalUsed reads the lifetime call counter for subject without incrementing.
+func (l *Limiter) TotalUsed(ctx context.Context, subject string) int64 {
+	if !l.Enabled() || subject == "" {
+		return 0
+	}
+	n, _ := l.rdb.Get(ctx, "usage:total:"+subject).Int64()
+	return n
+}
+
 // Usage reads aggregated usage for a key. Returns a zero-value stat on error.
 func (l *Limiter) Usage(ctx context.Context, keyID string) UsageStat {
 	var st UsageStat

api/internal/store/account.go

@@ -0,0 +1,169 @@
+package store
+
+import (
+	"context"
+	"errors"
+	"strings"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+	"golang.org/x/crypto/bcrypt"
+
+	"github.com/baicai2026-baicai/goods/api/internal/apikey"
+)
+
+// ErrEmailTaken is returned when registering an email that already exists.
+var ErrEmailTaken = errors.New("email already registered")
+
+// Account is a self-registered public-API user and its current key metadata.
+type Account struct {
+	ID              string `json:"id"`
+	Email           string `json:"email"`
+	KeyID           string `json:"-"`
+	KeyPrefix       string `json:"key_prefix"`
+	RateLimitPerMin int    `json:"rate_limit_per_min"`
+	QuotaTotal      int64  `json:"quota_total"`
+}
+
+// bcryptDummyHash is compared against on unknown-email logins to keep timing
+// roughly constant and avoid leaking which emails are registered.
+const bcryptDummyHash = "$2a$10$N9qo8uLOickgx2ZMRZoMyeIjZAgcfl7p92ldGxad68LJZdL17lhWy"
+
+func isUniqueViolation(err error) bool {
+	var pgErr *pgconn.PgError
+	return errors.As(err, &pgErr) && pgErr.Code == "23505"
+}
+
+// RegisterUser creates an account plus a self-issued API key with the given
+// per-minute rate and cumulative quota, returning the plaintext key (shown
+// once). Email uniqueness is case-insensitive; ErrEmailTaken signals a dupe.
+func (s *Store) RegisterUser(ctx context.Context, email, password string, ratePerMin int, quotaTotal int64) (plaintext string, acct Account, err error) {
+	email = strings.TrimSpace(email)
+	pwHash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return "", Account{}, err
+	}
+	key, keyHash, prefix, err := apikey.Generate()
+	if err != nil {
+		return "", Account{}, err
+	}
+
+	tx, err := s.pool.Begin(ctx)
+	if err != nil {
+		return "", Account{}, err
+	}
+	defer func() { _ = tx.Rollback(ctx) }()
+
+	var keyID string
+	if err = tx.QueryRow(ctx,
+		`INSERT INTO api_key (name, key_prefix, key_hash, owner_email, tier, rate_limit_per_min, quota_total, created_by)
+		 VALUES ($1,$2,$3,$4,'registered',$5,$6,'self-register') RETURNING id`,
+		"user:"+strings.ToLower(email), prefix, keyHash, email, ratePerMin, quotaTotal,
+	).Scan(&keyID); err != nil {
+		return "", Account{}, err
+	}
+
+	var userID string
+	if err = tx.QueryRow(ctx,
+		`INSERT INTO app_user (email, password_hash, api_key_id) VALUES ($1,$2,$3) RETURNING id`,
+		email, string(pwHash), keyID,
+	).Scan(&userID); err != nil {
+		if isUniqueViolation(err) {
+			return "", Account{}, ErrEmailTaken
+		}
+		return "", Account{}, err
+	}
+
+	if err = tx.Commit(ctx); err != nil {
+		return "", Account{}, err
+	}
+	return key, Account{
+		ID: userID, Email: email, KeyID: keyID, KeyPrefix: prefix,
+		RateLimitPerMin: ratePerMin, QuotaTotal: quotaTotal,
+	}, nil
+}
+
+// Authenticate verifies an email/password pair and returns the account with its
+// current (non-revoked) key metadata. Returns ErrNotFound on unknown email or
+// wrong password.
+func (s *Store) Authenticate(ctx context.Context, email, password string) (Account, error) {
+	email = strings.TrimSpace(email)
+	var (
+		userID, pwHash string
+		keyID          *string
+	)
+	err := s.pool.QueryRow(ctx,
+		`SELECT id, password_hash, api_key_id FROM app_user WHERE lower(email) = lower($1)`, email,
+	).Scan(&userID, &pwHash, &keyID)
+	if errors.Is(err, pgx.ErrNoRows) {
+		_ = bcrypt.CompareHashAndPassword([]byte(bcryptDummyHash), []byte(password))
+		return Account{}, ErrNotFound
+	}
+	if err != nil {
+		return Account{}, err
+	}
+	if err := bcrypt.CompareHashAndPassword([]byte(pwHash), []byte(password)); err != nil {
+		return Account{}, ErrNotFound
+	}
+
+	acct := Account{ID: userID, Email: email}
+	if keyID != nil {
+		acct.KeyID = *keyID
+		_ = s.pool.QueryRow(ctx,
+			`SELECT key_prefix, rate_limit_per_min, quota_total
+			 FROM api_key WHERE id = $1 AND revoked_at IS NULL`, *keyID,
+		).Scan(&acct.KeyPrefix, &acct.RateLimitPerMin, &acct.QuotaTotal)
+	}
+	return acct, nil
+}
+
+// RegenerateKey verifies credentials, revokes the account's current key, and
+// issues a fresh one with the same rate/quota, returning the plaintext key and
+// the previous key id (so cumulative usage can be carried over). Returns
+// ErrNotFound on bad credentials.
+func (s *Store) RegenerateKey(ctx context.Context, email, password string, ratePerMin int, quotaTotal int64) (plaintext string, acct Account, oldKeyID string, err error) {
+	cur, err := s.Authenticate(ctx, email, password)
+	if err != nil {
+		return "", Account{}, "", err
+	}
+	key, keyHash, prefix, err := apikey.Generate()
+	if err != nil {
+		return "", Account{}, "", err
+	}
+
+	oldKeyID = cur.KeyID
+
+	tx, err := s.pool.Begin(ctx)
+	if err != nil {
+		return "", Account{}, "", err
+	}
+	defer func() { _ = tx.Rollback(ctx) }()
+
+	if oldKeyID != "" {
+		if _, err = tx.Exec(ctx,
+			`UPDATE api_key SET revoked_at = now() WHERE id = $1`, oldKeyID); err != nil {
+			return "", Account{}, "", err
+		}
+	}
+	var newKeyID string
+	if err = tx.QueryRow(ctx,
+		`INSERT INTO api_key (name, key_prefix, key_hash, owner_email, tier, rate_limit_per_min, quota_total, created_by)
+		 VALUES ($1,$2,$3,$4,'registered',$5,$6,'self-register') RETURNING id`,
+		"user:"+strings.ToLower(cur.Email), prefix, keyHash, cur.Email, ratePerMin, quotaTotal,
+	).Scan(&newKeyID); err != nil {
+		return "", Account{}, "", err
+	}
+	if _, err = tx.Exec(ctx,
+		`UPDATE app_user SET api_key_id = $1 WHERE id = $2`, newKeyID, cur.ID); err != nil {
+		return "", Account{}, "", err
+	}
+	if err = tx.Commit(ctx); err != nil {
+		return "", Account{}, "", err
+	}
+
+	cur.KeyID = newKeyID
+	cur.KeyPrefix = prefix
+	cur.RateLimitPerMin = ratePerMin
+	cur.QuotaTotal = quotaTotal
+	return key, cur, oldKeyID, nil
+}

api/internal/store/account_test.go

@@ -0,0 +1,99 @@
+package store
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+
+	"github.com/baicai2026-baicai/goods/api/internal/apikey"
+)
+
+func testStore(t *testing.T) *Store {
+	t.Helper()
+	dsn := os.Getenv("OPENGOODS_DATABASE_URL")
+	if dsn == "" {
+		dsn = "postgres://opengoods:opengoods@localhost:5432/opengoods?sslmode=disable"
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+	pool, err := pgxpool.New(ctx, dsn)
+	if err != nil {
+		t.Skipf("no database: %v", err)
+	}
+	if err := pool.Ping(ctx); err != nil {
+		pool.Close()
+		t.Skipf("database not reachable: %v", err)
+	}
+	var hasUser bool
+	if err := pool.QueryRow(ctx, "SELECT to_regclass('public.app_user') IS NOT NULL").Scan(&hasUser); err != nil || !hasUser {
+		pool.Close()
+		t.Skip("migrations not applied")
+	}
+	t.Cleanup(pool.Close)
+	return New(pool)
+}
+
+func TestRegisterAuthenticateRegenerate(t *testing.T) {
+	s := testStore(t)
+	ctx := context.Background()
+	email := fmt.Sprintf("user-%d@example.com", time.Now().UnixNano())
+
+	t.Cleanup(func() {
+		_, _ = s.pool.Exec(ctx, "DELETE FROM app_user WHERE lower(email)=lower($1)", email)
+		_, _ = s.pool.Exec(ctx, "DELETE FROM api_key WHERE owner_email=$1", email)
+	})
+
+	key, acct, err := s.RegisterUser(ctx, email, "supersecret", 300, 100000)
+	if err != nil {
+		t.Fatalf("register: %v", err)
+	}
+	if key == "" || acct.KeyPrefix == "" || acct.QuotaTotal != 100000 || acct.RateLimitPerMin != 300 {
+		t.Fatalf("unexpected account: %+v key=%q", acct, key)
+	}
+
+	// The issued key resolves via the public auth path with its quota attached.
+	k, err := s.APIKeyByHash(ctx, apikey.Hash(key))
+	if err != nil {
+		t.Fatalf("APIKeyByHash: %v", err)
+	}
+	if k.QuotaTotal != 100000 || k.RateLimitPerMin != 300 {
+		t.Fatalf("key metadata mismatch: %+v", k)
+	}
+
+	// Duplicate email is rejected.
+	if _, _, err := s.RegisterUser(ctx, email, "anotherpass", 300, 100000); !errors.Is(err, ErrEmailTaken) {
+		t.Fatalf("expected ErrEmailTaken, got %v", err)
+	}
+
+	// Wrong password fails; correct password authenticates.
+	if _, err := s.Authenticate(ctx, email, "wrong"); !errors.Is(err, ErrNotFound) {
+		t.Fatalf("expected ErrNotFound for bad password, got %v", err)
+	}
+	got, err := s.Authenticate(ctx, email, "supersecret")
+	if err != nil {
+		t.Fatalf("authenticate: %v", err)
+	}
+	if got.KeyPrefix != acct.KeyPrefix {
+		t.Fatalf("authenticate key prefix = %q want %q", got.KeyPrefix, acct.KeyPrefix)
+	}
+
+	// Regeneration revokes the old key and issues a new one.
+	newKey, regen, oldKeyID, err := s.RegenerateKey(ctx, email, "supersecret", 300, 100000)
+	if err != nil {
+		t.Fatalf("regenerate: %v", err)
+	}
+	if newKey == key || oldKeyID != acct.KeyID || regen.KeyID == oldKeyID {
+		t.Fatalf("regenerate did not rotate key: old=%s new=%+v", oldKeyID, regen)
+	}
+	if _, err := s.APIKeyByHash(ctx, apikey.Hash(key)); !errors.Is(err, ErrNotFound) {
+		t.Fatalf("old key should be revoked, got %v", err)
+	}
+	if _, err := s.APIKeyByHash(ctx, apikey.Hash(newKey)); err != nil {
+		t.Fatalf("new key should be active: %v", err)
+	}
+}

api/internal/store/store.go

@@ -4,8 +4,10 @@ package store
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
 	"strconv"
+	"strings"
 
 	"github.com/jackc/pgx/v5"
 	"github.com/jackc/pgx/v5/pgxpool"
@@ -29,6 +31,24 @@ func (s *Store) Ping(ctx context.Context) error {
 	return s.pool.Ping(ctx)
 }
 
+// PublicStats summarizes the public catalog for the homepage.
+type PublicStats struct {
+	Total     int     `json:"total"`
+	Qualified int     `json:"qualified"`
+	MinScore  float64 `json:"min_score"`
+}
+
+// Stats returns active-product totals and the number of qualified records whose
+// quality_score meets minScore.
+func (s *Store) Stats(ctx context.Context, minScore float64) (PublicStats, error) {
+	st := PublicStats{MinScore: minScore}
+	err := s.pool.QueryRow(ctx, `
+SELECT count(*) FILTER (WHERE status = 'active'),
+       count(*) FILTER (WHERE status = 'active' AND quality_score >= $1)
+FROM product`, minScore).Scan(&st.Total, &st.Qualified)
+	return st, err
+}
+
 // Barcode is one GS1 trade item number attached to a product.
 type Barcode struct {
 	GTIN      string  `json:"gtin"`
@@ -38,6 +58,15 @@ type Barcode struct {
 	IsPrimary bool    `json:"is_primary"`
 }
 
+// ProductSpec is one labeled spec line for a non-food product, rendered from
+// the product's attributes JSONB against its archive kind's field template.
+type ProductSpec struct {
+	Key   string `json:"key"`
+	Label string `json:"label"`
+	Value string `json:"value"`
+	Unit  string `json:"unit,omitempty"`
+}
+
 // Product is the full public view of a product.
 type Product struct {
 	ID              string         `json:"id"`
@@ -46,11 +75,13 @@ type Product struct {
 	Brand           *string        `json:"brand"`
 	CategoryPath    *string        `json:"category_path"`
 	GPCBrickCode    *string        `json:"gpc_brick_code"`
+	ArchiveKind     string         `json:"archive_kind"`
 	NetContentValue *float64       `json:"net_content_value"`
 	NetContentUnit  *string        `json:"net_content_unit"`
 	CountryOfOrigin *string        `json:"country_of_origin"`
 	QualityScore    float64        `json:"quality_score"`
 	Barcodes        []Barcode      `json:"barcodes"`
+	Specs           []ProductSpec  `json:"specs,omitempty"`
 	Nutriments      map[string]any `json:"nutriments,omitempty"`
 	NutritionBasis  *string        `json:"nutrition_basis,omitempty"`
 	NutriScore      *string        `json:"nutri_score,omitempty"`
@@ -102,6 +133,7 @@ type SearchFilters struct {
 
 const productSelect = `
 SELECT p.id, p.gtin, p.name, b.name, c.path::text, p.gpc_brick_code,
+       COALESCE(c.archive_kind, 'generic'), p.attributes,
        p.net_content_value, p.net_content_unit, p.country_of_origin, p.quality_score,
        f.nutriments, f.nutrition_basis, f.nutri_score, f.ingredients_text,
        f.allergens, f.additives
@@ -111,21 +143,81 @@ LEFT JOIN category c ON c.id = p.category_id
 LEFT JOIN food_detail f ON f.product_id = p.id
 `
 
-func scanProduct(row pgx.Row) (*Product, error) {
+func scanProduct(row pgx.Row) (*Product, []byte, error) {
 	var p Product
+	var attributes []byte
 	err := row.Scan(
 		&p.ID, &p.GTIN, &p.Name, &p.Brand, &p.CategoryPath, &p.GPCBrickCode,
+		&p.ArchiveKind, &attributes,
 		&p.NetContentValue, &p.NetContentUnit, &p.CountryOfOrigin, &p.QualityScore,
 		&p.Nutriments, &p.NutritionBasis, &p.NutriScore, &p.Ingredients,
 		&p.Allergens, &p.Additives,
 	)
 	if errors.Is(err, pgx.ErrNoRows) {
-		return nil, ErrNotFound
+		return nil, nil, ErrNotFound
 	}
+	if err != nil {
+		return nil, nil, err
+	}
+	return &p, attributes, nil
+}
+
+// buildSpecs renders the labeled, ordered spec list for a non-food product from
+// its attributes JSONB against its archive kind's field template.
+func (s *Store) buildSpecs(ctx context.Context, kind string, attributes []byte) ([]ProductSpec, error) {
+	if kind == "" || kind == "food" || len(attributes) == 0 {
+		return nil, nil
+	}
+	attrs := map[string]any{}
+	if err := json.Unmarshal(attributes, &attrs); err != nil || len(attrs) == 0 {
+		return nil, nil
+	}
+	rows, err := s.pool.Query(ctx,
+		"SELECT field_key, label_zh, COALESCE(unit, '') FROM kind_field WHERE kind = $1 ORDER BY sort_order, field_key", kind)
 	if err != nil {
 		return nil, err
 	}
-	return &p, nil
+	defer rows.Close()
+	specs := []ProductSpec{}
+	for rows.Next() {
+		var key, label, unit string
+		if err := rows.Scan(&key, &label, &unit); err != nil {
+			return nil, err
+		}
+		v, ok := attrs[key]
+		if !ok || v == nil {
+			continue
+		}
+		val := stringifyAttr(v)
+		if val == "" {
+			continue
+		}
+		specs = append(specs, ProductSpec{Key: key, Label: label, Value: val, Unit: unit})
+	}
+	return specs, rows.Err()
+}
+
+// stringifyAttr renders a JSON attribute value as display text.
+func stringifyAttr(v any) string {
+	switch t := v.(type) {
+	case string:
+		return t
+	case float64:
+		return strconv.FormatFloat(t, 'f', -1, 64)
+	case bool:
+		if t {
+			return "是"
+		}
+		return "否"
+	case []any:
+		parts := make([]string, 0, len(t))
+		for _, e := range t {
+			parts = append(parts, stringifyAttr(e))
+		}
+		return strings.Join(parts, "、")
+	default:
+		return ""
+	}
 }
 
 // ProductByGTIN looks up an active product by any of its barcodes.
@@ -136,26 +228,32 @@ func (s *Store) ProductByGTIN(ctx context.Context, gtin string) (*Product, error
          SELECT 1 FROM product_barcode pb
          WHERE pb.product_id = p.id AND pb.gtin = $1))
  LIMIT 1`, gtin)
-	p, err := scanProduct(row)
+	p, attrs, err := scanProduct(row)
 	if err != nil {
 		return nil, err
 	}
 	if p.Barcodes, err = s.ProductBarcodes(ctx, p.ID); err != nil {
 		return nil, err
 	}
+	if p.Specs, err = s.buildSpecs(ctx, p.ArchiveKind, attrs); err != nil {
+		return nil, err
+	}
 	return p, nil
 }
 
 // ProductByID looks up a product by its UUID.
 func (s *Store) ProductByID(ctx context.Context, id string) (*Product, error) {
 	row := s.pool.QueryRow(ctx, productSelect+" WHERE p.id = $1", id)
-	p, err := scanProduct(row)
+	p, attrs, err := scanProduct(row)
 	if err != nil {
 		return nil, err
 	}
 	if p.Barcodes, err = s.ProductBarcodes(ctx, p.ID); err != nil {
 		return nil, err
 	}
+	if p.Specs, err = s.buildSpecs(ctx, p.ArchiveKind, attrs); err != nil {
+		return nil, err
+	}
 	return p, nil
 }
 
@@ -355,6 +453,7 @@ type APIKey struct {
 	ID              string
 	Name            string
 	RateLimitPerMin int
+	QuotaTotal      int64
 }
 
 // APIKeyByHash returns the active (non-revoked) key matching a SHA-256 hash,
@@ -362,9 +461,9 @@ type APIKey struct {
 func (s *Store) APIKeyByHash(ctx context.Context, hash string) (*APIKey, error) {
 	var k APIKey
 	err := s.pool.QueryRow(ctx,
-		`SELECT id, name, rate_limit_per_min
+		`SELECT id, name, rate_limit_per_min, quota_total
 		 FROM api_key WHERE key_hash = $1 AND revoked_at IS NULL`, hash,
-	).Scan(&k.ID, &k.Name, &k.RateLimitPerMin)
+	).Scan(&k.ID, &k.Name, &k.RateLimitPerMin, &k.QuotaTotal)
 	if errors.Is(err, pgx.ErrNoRows) {
 		return nil, ErrNotFound
 	}

migrations/0010_archive_kinds.down.sql

@@ -0,0 +1,9 @@
+-- Detach any products from the seeded 3C categories, then remove them.
+UPDATE product SET category_id = NULL
+WHERE category_id IN (SELECT id FROM category WHERE path <@ 'electronics');
+
+DELETE FROM category WHERE path <@ 'electronics';
+
+DROP TABLE IF EXISTS kind_field;
+
+ALTER TABLE category DROP COLUMN IF EXISTS archive_kind;

migrations/0010_archive_kinds.up.sql

@@ -0,0 +1,64 @@
+-- Generic, extensible "archive kind" (档案模式) framework.
+-- Instead of a dedicated detail table per domain (food/electronics/drug/...),
+-- each category belongs to an archive_kind, and a metadata table (kind_field)
+-- describes the editable spec fields for that kind. Non-food spec values live
+-- in the existing product.attributes JSONB. Adding a new domain later (drug,
+-- machinery, ...) is just: seed kind_field rows + a category subtree.
+
+ALTER TABLE category ADD COLUMN archive_kind VARCHAR(24) NOT NULL DEFAULT 'generic';
+
+-- The existing seeded tree is the food domain.
+UPDATE category SET archive_kind = 'food' WHERE path <@ 'food';
+
+-- Field template per archive kind: drives the dynamic admin form and the
+-- kind-aware completeness/qualified computation.
+CREATE TABLE kind_field (
+    kind        VARCHAR(24) NOT NULL,
+    field_key   VARCHAR(64) NOT NULL,
+    group_label TEXT NOT NULL DEFAULT '',
+    label_zh    TEXT NOT NULL,
+    field_type  VARCHAR(16) NOT NULL DEFAULT 'text',
+    unit        TEXT,
+    options     TEXT[] NOT NULL DEFAULT '{}',
+    placeholder TEXT,
+    sort_order  INT NOT NULL DEFAULT 0,
+    qualified   BOOLEAN NOT NULL DEFAULT false,
+    PRIMARY KEY (kind, field_key),
+    CONSTRAINT kind_field_type_chk CHECK (field_type IN ('text','number','textarea','select','list'))
+);
+
+-- Seed the electronics (3C) field template.
+INSERT INTO kind_field (kind, field_key, group_label, label_zh, field_type, unit, sort_order, qualified) VALUES
+('electronics','model_number',   '基础规格','型号',        'text',   NULL,  10, true),
+('electronics','ccc_cert',       '基础规格','3C认证号(CCC)','text',  NULL,  20, true),
+('electronics','color',          '基础规格','颜色',        'text',   NULL,  30, false),
+('electronics','release_year',   '基础规格','发布年份',    'number', NULL,  40, false),
+('electronics','warranty_months','基础规格','保修期',      'number', '月',  50, false),
+('electronics','dimensions',     '外形','尺寸(长x宽x高)',  'text',   'mm',  60, false),
+('electronics','weight',         '外形','重量',            'number', 'g',   70, false),
+('electronics','power',          '外形','电源/功率',       'text',   NULL,  80, false),
+('electronics','os',             '关键参数','操作系统',    'text',   NULL,  90, false),
+('electronics','cpu',            '关键参数','处理器',      'text',   NULL, 100, false),
+('electronics','ram',            '关键参数','内存',        'text',   NULL, 110, false),
+('electronics','storage',        '关键参数','存储',        'text',   NULL, 120, false),
+('electronics','screen_size',    '关键参数','屏幕尺寸',    'text',   NULL, 130, true),
+('electronics','battery',        '关键参数','电池容量',    'text',   NULL, 140, false),
+('electronics','ports',          '关键参数','接口',        'text',   NULL, 150, false);
+
+-- Seed the 3C category tree.
+INSERT INTO category (name_zh, name_en, parent_id, path, level, archive_kind)
+VALUES ('电子数码', 'Electronics', NULL, 'electronics', 0, 'electronics');
+
+INSERT INTO category (name_zh, name_en, parent_id, path, level, archive_kind)
+SELECT v.name_zh, v.name_en, c.id, v.path::ltree, 1, 'electronics'
+FROM (VALUES
+    ('手机',     'Smartphone',     'electronics.phone'),
+    ('笔记本电脑', 'Laptop',        'electronics.laptop'),
+    ('平板电脑',  'Tablet',         'electronics.tablet'),
+    ('智能手表',  'Smartwatch',     'electronics.watch'),
+    ('耳机',     'Headphone',      'electronics.headphone'),
+    ('相机',     'Camera',         'electronics.camera'),
+    ('电视',     'TV',             'electronics.tv'),
+    ('家用电器',  'Home appliance', 'electronics.appliance')
+) AS v(name_zh, name_en, path)
+JOIN category c ON c.path = 'electronics';

migrations/0011_api_quota.down.sql

@@ -0,0 +1,10 @@
+DROP TABLE IF EXISTS app_user;
+
+-- Demote any self-registered keys before restoring the narrower tier check.
+UPDATE api_key SET tier = 'free' WHERE tier = 'registered';
+
+ALTER TABLE api_key DROP CONSTRAINT IF EXISTS api_key_tier_chk;
+ALTER TABLE api_key ADD CONSTRAINT api_key_tier_chk
+    CHECK (tier IN ('free', 'partner', 'internal'));
+
+ALTER TABLE api_key DROP COLUMN IF EXISTS quota_total;

migrations/0011_api_quota.up.sql

@@ -0,0 +1,27 @@
+-- Cumulative usage quotas + self-service user registration for the public API.
+--
+-- The free anonymous tier is capped at a lifetime number of calls (enforced in
+-- Redis, keyed by client IP). To keep calling beyond the free quota a caller
+-- registers an account and self-issues an API key with a higher quota.
+-- quota_total = 0 means unlimited.
+--
+-- Registration is the one place the public server writes to PostgreSQL (it
+-- inserts an app_user and its api_key); every other public route stays
+-- read-only. Request counting still lives entirely in Redis.
+
+ALTER TABLE api_key ADD COLUMN IF NOT EXISTS quota_total BIGINT NOT NULL DEFAULT 0;
+
+ALTER TABLE api_key DROP CONSTRAINT IF EXISTS api_key_tier_chk;
+ALTER TABLE api_key ADD CONSTRAINT api_key_tier_chk
+    CHECK (tier IN ('free', 'registered', 'partner', 'internal'));
+
+CREATE TABLE IF NOT EXISTS app_user (
+    id            UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    email         TEXT NOT NULL,
+    password_hash TEXT NOT NULL,
+    api_key_id    UUID REFERENCES api_key (id) ON DELETE SET NULL,
+    created_at    TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+-- Case-insensitive uniqueness so each email registers at most once.
+CREATE UNIQUE INDEX IF NOT EXISTS idx_app_user_email ON app_user (lower(email));

public-frontend/src/App.tsx

@@ -1,18 +1,29 @@
-import { useState } from "react";
-import { Boxes, Search, PlusCircle, Code2 } from "lucide-react";
+import { useEffect, useState } from "react";
+import { Boxes, Search, PlusCircle, Code2, KeyRound } from "lucide-react";
 import Home from "./components/Home";
 import ProductView from "./components/ProductView";
 import Contribute from "./components/Contribute";
 import ApiDocs from "./components/ApiDocs";
+import Account from "./components/Account";
+import { api } from "./api";
 
 type View =
   | { name: "home" }
   | { name: "product"; id: string }
   | { name: "contribute" }
-  | { name: "api" };
+  | { name: "api" }
+  | { name: "account" };
 
 export default function App() {
   const [view, setView] = useState<View>({ name: "home" });
+  const [qualified, setQualified] = useState<number | null>(null);
+
+  useEffect(() => {
+    api
+      .stats()
+      .then((s) => setQualified(s.qualified))
+      .catch(() => setQualified(null));
+  }, []);
 
   return (
     <div className="min-h-full flex flex-col">
@@ -50,6 +61,14 @@ export default function App() {
             >
               <Code2 className="w-4 h-4" /> API
             </button>
+            <button
+              className={`px-3 py-1.5 rounded-md flex items-center gap-1.5 ${
+                view.name === "account" ? "bg-emerald-50 text-emerald-700" : "text-gray-600 hover:bg-gray-100"
+              }`}
+              onClick={() => setView({ name: "account" })}
+            >
+              <KeyRound className="w-4 h-4" /> API 密钥
+            </button>
           </nav>
         </div>
       </header>
@@ -68,13 +87,22 @@ export default function App() {
         {view.name === "contribute" && (
           <Contribute onDone={() => setView({ name: "home" })} />
         )}
-        {view.name === "api" && <ApiDocs />}
+        {view.name === "api" && <ApiDocs onRegister={() => setView({ name: "account" })} />}
+        {view.name === "account" && <Account />}
       </main>
 
       <footer className="border-t bg-white">
-        <div className="max-w-5xl mx-auto px-4 py-4 text-xs text-gray-400 leading-relaxed">
-          天工商品档案公共仓 是公益性「商品事实库」，仅收录客观商品信息（条码、品牌、品类、营养、官方建议零售价快照等），不含任何购买/交易功能。
-          公众投稿须经人工审核后方可收纳。
+        <div className="max-w-5xl mx-auto px-4 py-4 text-xs text-gray-400 leading-relaxed text-center">
+          {qualified != null && (
+            <div className="mb-2 text-gray-500">
+              目前已收录
+              <span className="mx-1 font-semibold text-emerald-600">
+                {qualified.toLocaleString()}
+              </span>
+              条合格商品档案
+            </div>
+          )}
+          天工是一个公益性商品档案库。主要收录商品名称，条码，品类，配料等官方快照。不涉及任何交易行为。
           <button onClick={() => setView({ name: "api" })} className="ml-1 text-emerald-600 hover:underline">
             API 调用说明
           </button>

public-frontend/src/api.ts

@@ -30,7 +30,31 @@ export interface SearchFilters {
   country?: string;
 }
 
+export interface Stats {
+  total: number;
+  qualified: number;
+  min_score: number;
+}
+
+export interface KeyResponse {
+  email: string;
+  api_key: string;
+  key_prefix: string;
+  rate_limit_per_min: number;
+  quota_total: number;
+}
+
+export interface AccountInfo {
+  email: string;
+  key_prefix: string;
+  rate_limit_per_min: number;
+  quota_total: number;
+  quota_used: number;
+  quota_remaining: number;
+}
+
 export const api = {
+  stats: () => req<Stats>(`/api/v1/stats`),
   search: (q: string, page = 1, size = 20, filters: SearchFilters = {}) => {
     const params = new URLSearchParams({
       q,
@@ -48,4 +72,19 @@ export const api = {
       method: "POST",
       body: JSON.stringify(input),
     }),
+  register: (email: string, password: string) =>
+    req<KeyResponse>(`/api/v1/register`, {
+      method: "POST",
+      body: JSON.stringify({ email, password }),
+    }),
+  account: (email: string, password: string) =>
+    req<AccountInfo>(`/api/v1/account`, {
+      method: "POST",
+      body: JSON.stringify({ email, password }),
+    }),
+  regenerate: (email: string, password: string) =>
+    req<KeyResponse>(`/api/v1/account/regenerate`, {
+      method: "POST",
+      body: JSON.stringify({ email, password }),
+    }),
 };

public-frontend/src/components/Account.tsx

@@ -0,0 +1,192 @@
+import { useState } from "react";
+import { Check, Copy, KeyRound, AlertTriangle } from "lucide-react";
+import { api, type AccountInfo, type KeyResponse } from "../api";
+
+function KeyReveal({ data }: { data: KeyResponse }) {
+  const [copied, setCopied] = useState(false);
+  return (
+    <div className="mt-4 rounded-lg border border-emerald-200 bg-emerald-50 p-4">
+      <div className="flex items-start gap-2 text-amber-700 text-sm">
+        <AlertTriangle className="w-4 h-4 mt-0.5 shrink-0" />
+        <span>请立即复制保存此密钥，它只显示这一次，无法再次查看。</span>
+      </div>
+      <div className="mt-3 flex items-center gap-2">
+        <code className="flex-1 break-all bg-white border rounded-md px-3 py-2 text-sm font-mono text-gray-800">
+          {data.api_key}
+        </code>
+        <button
+          onClick={async () => {
+            try {
+              await navigator.clipboard.writeText(data.api_key);
+              setCopied(true);
+              setTimeout(() => setCopied(false), 1200);
+            } catch {
+              /* clipboard unavailable */
+            }
+          }}
+          className="text-gray-400 hover:text-gray-600 shrink-0"
+          title="复制"
+        >
+          {copied ? <Check className="w-5 h-5 text-emerald-600" /> : <Copy className="w-5 h-5" />}
+        </button>
+      </div>
+      <div className="mt-3 text-sm text-gray-600">
+        配额：每分钟 <strong>{data.rate_limit_per_min}</strong> 次 · 累计{" "}
+        <strong>{data.quota_total.toLocaleString()}</strong> 次
+      </div>
+      <div className="mt-2 text-xs text-gray-500">
+        调用时通过请求头携带：
+        <code className="font-mono">X-API-Key: {data.api_key.slice(0, 12)}…</code>
+      </div>
+    </div>
+  );
+}
+
+export default function Account() {
+  const [mode, setMode] = useState<"register" | "manage">("register");
+  const [email, setEmail] = useState("");
+  const [password, setPassword] = useState("");
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const [issued, setIssued] = useState<KeyResponse | null>(null);
+  const [info, setInfo] = useState<AccountInfo | null>(null);
+
+  const reset = () => {
+    setError(null);
+    setIssued(null);
+    setInfo(null);
+  };
+
+  async function submit(e: React.FormEvent) {
+    e.preventDefault();
+    reset();
+    if (password.length < 8) {
+      setError("密码至少需要 8 位");
+      return;
+    }
+    setLoading(true);
+    try {
+      if (mode === "register") {
+        setIssued(await api.register(email, password));
+      } else {
+        setInfo(await api.account(email, password));
+      }
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "操作失败");
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  async function regenerate() {
+    reset();
+    setLoading(true);
+    try {
+      setIssued(await api.regenerate(email, password));
+    } catch (err) {
+      setError(err instanceof Error ? err.message : "操作失败");
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  return (
+    <div className="max-w-xl mx-auto space-y-5">
+      <div className="bg-white border rounded-lg p-5">
+        <h1 className="flex items-center gap-2 text-2xl font-bold text-gray-800">
+          <KeyRound className="w-6 h-6 text-emerald-600" /> API 密钥
+        </h1>
+        <p className="mt-2 text-sm text-gray-600 leading-relaxed">
+          匿名调用免费，但每个来源 IP 累计共 <strong>1000</strong> 次。注册一个账号即可自助领取专属 API
+          密钥，获得更高的每分钟频率与累计调用配额。
+        </p>
+
+        <div className="mt-4 inline-flex rounded-md border bg-gray-50 p-0.5 text-sm">
+          <button
+            className={`px-4 py-1.5 rounded ${
+              mode === "register" ? "bg-white shadow-sm text-emerald-700" : "text-gray-500"
+            }`}
+            onClick={() => {
+              setMode("register");
+              reset();
+            }}
+          >
+            注册领取
+          </button>
+          <button
+            className={`px-4 py-1.5 rounded ${
+              mode === "manage" ? "bg-white shadow-sm text-emerald-700" : "text-gray-500"
+            }`}
+            onClick={() => {
+              setMode("manage");
+              reset();
+            }}
+          >
+            查看 / 重置
+          </button>
+        </div>
+
+        <form onSubmit={submit} className="mt-4 space-y-3">
+          <div>
+            <label className="block text-sm text-gray-600 mb-1">邮箱</label>
+            <input
+              type="email"
+              required
+              value={email}
+              onChange={(e) => setEmail(e.target.value)}
+              placeholder="you@example.com"
+              className="w-full border rounded-md px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-emerald-500"
+            />
+          </div>
+          <div>
+            <label className="block text-sm text-gray-600 mb-1">密码（至少 8 位）</label>
+            <input
+              type="password"
+              required
+              value={password}
+              onChange={(e) => setPassword(e.target.value)}
+              placeholder="••••••••"
+              className="w-full border rounded-md px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-emerald-500"
+            />
+          </div>
+          {error && <div className="text-sm text-red-600">{error}</div>}
+          <button
+            type="submit"
+            disabled={loading}
+            className="w-full bg-emerald-600 text-white rounded-md py-2 text-sm font-medium hover:bg-emerald-700 disabled:opacity-50"
+          >
+            {loading ? "处理中…" : mode === "register" ? "注册并领取密钥" : "查询账号"}
+          </button>
+        </form>
+
+        {issued && <KeyReveal data={issued} />}
+
+        {info && (
+          <div className="mt-4 rounded-lg border bg-gray-50 p-4 text-sm text-gray-700 space-y-1.5">
+            <div>
+              邮箱：<span className="font-medium">{info.email}</span>
+            </div>
+            <div>
+              密钥前缀：<code className="font-mono">{info.key_prefix}…</code>
+            </div>
+            <div>
+              每分钟频率：<strong>{info.rate_limit_per_min}</strong> 次
+            </div>
+            <div>
+              累计配额：已用 <strong>{info.quota_used.toLocaleString()}</strong> /{" "}
+              {info.quota_total.toLocaleString()} 次（剩余{" "}
+              <strong className="text-emerald-600">{info.quota_remaining.toLocaleString()}</strong>）
+            </div>
+            <button
+              onClick={regenerate}
+              disabled={loading}
+              className="mt-2 text-emerald-600 hover:underline disabled:opacity-50"
+            >
+              忘记密钥？重置并生成新密钥
+            </button>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}

public-frontend/src/components/ApiDocs.tsx

@@ -102,7 +102,7 @@ function Endpoint({
   );
 }
 
-export default function ApiDocs() {
+export default function ApiDocs({ onRegister }: { onRegister?: () => void }) {
   return (
     <div className="space-y-5">
       <div className="bg-white border rounded-lg p-5">
@@ -117,7 +117,11 @@ export default function ApiDocs() {
             基础地址：<code className="font-mono bg-gray-100 rounded px-1.5 py-0.5">{BASE}</code>
           </div>
           <ul className="mt-2 list-disc pl-5 text-gray-600 space-y-1">
-            <li>无需 API Key / Token 即可直接 GET；带 Key 可获得更高频率上限（见下文「鉴权与限流」）。</li>
+            <li>
+              无需 API Key / Token 即可直接 GET；匿名调用按来源 IP 累计共 <strong>1000</strong> 次，
+              用满后需<button onClick={onRegister} className="text-emerald-600 hover:underline">注册账号</button>
+              领取更高配额密钥（见下文「鉴权与配额」）。
+            </li>
             <li>
               分页参数 <code className="font-mono">page</code>（默认 1）、
               <code className="font-mono">size</code>（默认 20，最大 100）。
@@ -132,10 +136,13 @@ export default function ApiDocs() {
       </div>
 
       <div className="bg-white border rounded-lg p-5">
-        <h2 className="text-lg font-semibold text-gray-800">鉴权与限流</h2>
+        <h2 className="text-lg font-semibold text-gray-800">鉴权与配额</h2>
         <p className="mt-2 text-gray-600 text-sm leading-relaxed">
-          API 默认<strong>匿名可用</strong>：无需任何凭证即可调用，按来源 IP 计入一个较低的默认频率额度。
-          如需更高额度并让用量归属到你，可在运营方申请一枚 API Key，请求时通过请求头携带：
+          API 默认<strong>匿名可用</strong>：无需任何凭证即可调用，但按来源 IP 计一个
+          <strong>累计总配额（共 1000 次）</strong>，用满后返回
+          <code className="font-mono">403</code>（错误码 <code className="font-mono">quota_exhausted</code>），
+          需<button onClick={onRegister} className="text-emerald-600 hover:underline">注册账号</button>
+          自助领取更高配额的 API Key。注册得到的密钥拥有更高的每分钟频率与累计调用配额，请求时通过请求头携带：
         </p>
         <div className="mt-3">
           <Code>{`# 二选一
@@ -143,7 +150,7 @@ curl -H "X-API-Key: og_live_xxxxxxxx" ${BASE}/products/search?q=牛奶
 curl -H "Authorization: Bearer og_live_xxxxxxxx" ${BASE}/products/search?q=牛奶`}</Code>
         </div>
         <p className="mt-3 text-gray-600 text-sm leading-relaxed">
-          采用<strong>固定窗口</strong>限流（每分钟）。每个响应都会回写以下响应头，便于客户端自适应：
+          同时采用<strong>每分钟固定窗口</strong>频率限制与<strong>累计总配额</strong>两层控制。每个响应都会回写以下响应头，便于客户端自适应：
         </p>
         <table className="mt-3 w-full text-sm">
           <thead className="text-gray-400 text-left">
@@ -169,12 +176,26 @@ curl -H "Authorization: Bearer og_live_xxxxxxxx" ${BASE}/products/search?q=牛
               <td className="pr-4 py-0.5 font-mono text-gray-700">Retry-After</td>
               <td className="py-0.5 text-gray-600">超额时返回，建议等待的秒数</td>
             </tr>
+            <tr>
+              <td className="pr-4 py-0.5 font-mono text-gray-700">X-Quota-Limit</td>
+              <td className="py-0.5 text-gray-600">累计总配额上限</td>
+            </tr>
+            <tr>
+              <td className="pr-4 py-0.5 font-mono text-gray-700">X-Quota-Used</td>
+              <td className="py-0.5 text-gray-600">已累计使用的调用次数</td>
+            </tr>
+            <tr>
+              <td className="pr-4 py-0.5 font-mono text-gray-700">X-Quota-Remaining</td>
+              <td className="py-0.5 text-gray-600">累计配额剩余可用次数</td>
+            </tr>
           </tbody>
         </table>
         <p className="mt-3 text-gray-600 text-sm leading-relaxed">
-          超过额度返回 <code className="font-mono">429 Too Many Requests</code>，错误码
-          <code className="font-mono">rate_limited</code>；无效或已吊销的 Key 返回
-          <code className="font-mono">401</code>，错误码 <code className="font-mono">invalid_api_key</code>。
+          每分钟超额返回 <code className="font-mono">429 Too Many Requests</code>（错误码
+          <code className="font-mono">rate_limited</code>）；累计配额用尽返回
+          <code className="font-mono">403</code>（错误码 <code className="font-mono">quota_exhausted</code>）；
+          无效或已吊销的 Key 返回 <code className="font-mono">401</code>（错误码
+          <code className="font-mono">invalid_api_key</code>）。
         </p>
       </div>
 
@@ -322,6 +343,70 @@ curl -H "Authorization: Bearer og_live_xxxxxxxx" ${BASE}/products/search?q=牛
 }`}
       />
 
+      <Endpoint
+        method="POST"
+        path="/api/v1/register"
+        title="注册账号并领取 API 密钥"
+        desc="用邮箱 + 密码（至少 8 位）注册，自助领取一枚更高配额的 API 密钥。明文密钥只在本次响应返回一次，请妥善保存。"
+        params={[
+          { name: "email", required: true, desc: "邮箱（唯一）" },
+          { name: "password", required: true, desc: "密码，至少 8 位" },
+        ]}
+        example={`curl -X POST ${BASE}/register \\
+  -H "Content-Type: application/json" \\
+  -d '{"email":"you@example.com","password":"your-password"}'`}
+        response={`{
+  "email": "you@example.com",
+  "api_key": "og_live_xxxxxxxxxxxx",
+  "key_prefix": "og_live_xxxx",
+  "rate_limit_per_min": 300,
+  "quota_total": 100000
+}`}
+      />
+
+      <Endpoint
+        method="POST"
+        path="/api/v1/account"
+        title="查看账号与配额用量"
+        desc="用邮箱 + 密码查询当前密钥前缀、频率/累计配额上限及已用量（不返回明文密钥）。"
+        params={[
+          { name: "email", required: true, desc: "注册邮箱" },
+          { name: "password", required: true, desc: "账号密码" },
+        ]}
+        example={`curl -X POST ${BASE}/account \\
+  -H "Content-Type: application/json" \\
+  -d '{"email":"you@example.com","password":"your-password"}'`}
+        response={`{
+  "email": "you@example.com",
+  "key_prefix": "og_live_xxxx",
+  "rate_limit_per_min": 300,
+  "quota_total": 100000,
+  "quota_used": 1234,
+  "quota_remaining": 98766
+}`}
+      />
+
+      <Endpoint
+        method="POST"
+        path="/api/v1/account/regenerate"
+        title="重置 API 密钥"
+        desc="吊销当前密钥并生成新密钥（累计用量会延续，不会因重置而清零）。明文新密钥只返回一次。"
+        params={[
+          { name: "email", required: true, desc: "注册邮箱" },
+          { name: "password", required: true, desc: "账号密码" },
+        ]}
+        example={`curl -X POST ${BASE}/account/regenerate \\
+  -H "Content-Type: application/json" \\
+  -d '{"email":"you@example.com","password":"your-password"}'`}
+        response={`{
+  "email": "you@example.com",
+  "api_key": "og_live_yyyyyyyyyyyy",
+  "key_prefix": "og_live_yyyy",
+  "rate_limit_per_min": 300,
+  "quota_total": 100000
+}`}
+      />
+
       <div className="text-xs text-gray-400 leading-relaxed">
         数据可能存在误差或滞后，按「现状」提供，不构成医疗/购买建议。商品资料版权归各原始来源所有，
         请遵循其许可（如 OpenFoodFacts 的 ODbL）。

public-frontend/src/components/Home.tsx

@@ -13,8 +13,6 @@ export default function Home({
   onApi: () => void;
 }) {
   const [q, setQ] = useState("");
-  const [brand, setBrand] = useState("");
-  const [country, setCountry] = useState("");
   const [items, setItems] = useState<ProductSummary[]>([]);
   const [total, setTotal] = useState(0);
   const [searched, setSearched] = useState(false);
@@ -26,10 +24,7 @@ export default function Home({
     setLoading(true);
     setError("");
     try {
-      const res = await api.search(q.trim(), 1, 30, {
-        brand: brand.trim() || undefined,
-        country: country.trim() || undefined,
-      });
+      const res = await api.search(q.trim(), 1, 30);
       setItems(res.items);
       setTotal(res.total);
       setSearched(true);
@@ -43,7 +38,7 @@ export default function Home({
   return (
     <div>
       <div className="text-center py-10">
-        <h1 className="text-3xl font-bold text-gray-800">天工商品档案公共仓</h1>
+        <h1 className="text-3xl font-bold text-gray-800">天工</h1>
         <p className="mt-2 text-gray-500">
           输入商品名称或条码，检索客观、可溯源的商品资料。人人可查，人人可贡献。
         </p>
@@ -66,20 +61,6 @@ export default function Home({
             {loading ? "检索中…" : "检索"}
           </button>
         </form>
-        <div className="mt-3 max-w-2xl mx-auto flex flex-wrap items-center justify-center gap-2 text-sm">
-          <input
-            value={brand}
-            onChange={(e) => setBrand(e.target.value)}
-            placeholder="按品牌筛选（如 Ferrero）"
-            className="flex-1 min-w-[14rem] bg-white border rounded-lg px-3 py-2 outline-none focus:ring-2 focus:ring-emerald-300"
-          />
-          <input
-            value={country}
-            onChange={(e) => setCountry(e.target.value)}
-            placeholder="按产地筛选（如 China）"
-            className="flex-1 min-w-[14rem] bg-white border rounded-lg px-3 py-2 outline-none focus:ring-2 focus:ring-emerald-300"
-          />
-        </div>
         <button
           onClick={onApi}
           className="mt-4 inline-flex items-center gap-1.5 text-sm text-emerald-700 hover:underline"

public-frontend/src/components/ProductView.tsx

@@ -106,6 +106,23 @@ export default function ProductView({ id, onBack }: { id: string; onBack: () =>
         </div>
       </div>
 
+      {p.specs && p.specs.length > 0 && (
+        <div className="bg-white border rounded-lg p-5 mt-4">
+          <h2 className="font-medium text-gray-700 mb-2">规格参数</h2>
+          <div className="grid grid-cols-1 sm:grid-cols-2 gap-2 text-sm">
+            {p.specs.map((s) => (
+              <div key={s.key} className="bg-gray-50 rounded px-3 py-2">
+                <div className="text-gray-400 text-xs">{s.label}</div>
+                <div className="text-gray-800">
+                  {s.value}
+                  {s.unit ? ` ${s.unit}` : ""}
+                </div>
+              </div>
+            ))}
+          </div>
+        </div>
+      )}
+
       {nutriEntries.length > 0 && (
         <div className="bg-white border rounded-lg p-5 mt-4">
           <h2 className="font-medium text-gray-700 mb-2">

public-frontend/src/types.ts

@@ -17,6 +17,13 @@ export interface Barcode {
   is_primary: boolean;
 }
 
+export interface ProductSpec {
+  key: string;
+  label: string;
+  value: string;
+  unit?: string;
+}
+
 export interface Product {
   id: string;
   gtin: string | null;
@@ -24,6 +31,8 @@ export interface Product {
   name: string;
   brand: string | null;
   category_path: string | null;
+  archive_kind?: string;
+  specs?: ProductSpec[] | null;
   net_content_value: number | null;
   net_content_unit: string | null;
   country_of_origin: string | null;