feat: 持久化采集记录去重 + Goods系统批量导入

- collected.txt 跨文件/跨次记录已查询条码，避免重复采集
- Web UI 显示历史已采集条码计数
- Goods API 新增 POST /api/import/bypos 批量导入端点（含upsert）
- 采集器 Web UI 新增一键导入按钮（登录+上传JSONL）
- Windows exe 重新编译

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

tools/bypos-collector/main.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"bufio"
+	"bytes"
 	"embed"
 	"encoding/csv"
 	"encoding/json"
@@ -15,6 +16,7 @@ import (
 	"os"
 	"os/exec"
 	"runtime"
+	"strings"
 	"time"
 )
 
@@ -70,6 +72,7 @@ func main() {
 	mux.HandleFunc("/api/stats", handleStats)
 	mux.HandleFunc("/api/download", handleDownload)
 	mux.HandleFunc("/api/export.csv", handleExportCSV)
+	mux.HandleFunc("/api/import", handleImport)
 
 	ln, err := net.Listen("tcp", *addr)
 	if err != nil {
@@ -168,6 +171,79 @@ func handleDownload(w http.ResponseWriter, r *http.Request) {
 	io.Copy(w, f)
 }
 
+func handleImport(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "POST" {
+		http.Error(w, "method", 405)
+		return
+	}
+	var req struct {
+		APIURL   string `json:"api_url"`
+		Username string `json:"username"`
+		Password string `json:"password"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		writeJSON(w, 400, map[string]string{"error": "请求格式错误"})
+		return
+	}
+	req.APIURL = strings.TrimRight(req.APIURL, "/")
+	if req.APIURL == "" || req.Username == "" || req.Password == "" {
+		writeJSON(w, 400, map[string]string{"error": "请填写完整的 API 地址、用户名和密码"})
+		return
+	}
+
+	s := collector.snapshot()
+	if s.OutFile == "" {
+		writeJSON(w, 400, map[string]string{"error": "没有采集数据可导入"})
+		return
+	}
+
+	client := &http.Client{Timeout: 60 * time.Second}
+
+	loginBody, _ := json.Marshal(map[string]string{"username": req.Username, "password": req.Password})
+	loginResp, err := client.Post(req.APIURL+"/api/login", "application/json", bytes.NewReader(loginBody))
+	if err != nil {
+		writeJSON(w, 502, map[string]string{"error": "无法连接 Goods 系统: " + err.Error()})
+		return
+	}
+	defer loginResp.Body.Close()
+	var loginResult struct {
+		Token string `json:"token"`
+		Error *struct {
+			Message string `json:"message"`
+		} `json:"error"`
+	}
+	json.NewDecoder(loginResp.Body).Decode(&loginResult)
+	if loginResp.StatusCode != 200 || loginResult.Token == "" {
+		msg := "登录失败"
+		if loginResult.Error != nil {
+			msg = loginResult.Error.Message
+		}
+		writeJSON(w, 401, map[string]string{"error": msg})
+		return
+	}
+
+	jsonlData, err := os.ReadFile(s.OutFile)
+	if err != nil {
+		writeJSON(w, 500, map[string]string{"error": "读取采集文件失败: " + err.Error()})
+		return
+	}
+
+	importReq, _ := http.NewRequest("POST", req.APIURL+"/api/import/bypos", bytes.NewReader(jsonlData))
+	importReq.Header.Set("Content-Type", "application/x-ndjson")
+	importReq.Header.Set("Authorization", "Bearer "+loginResult.Token)
+	importResp, err := client.Do(importReq)
+	if err != nil {
+		writeJSON(w, 502, map[string]string{"error": "导入请求失败: " + err.Error()})
+		return
+	}
+	defer importResp.Body.Close()
+	respBody, _ := io.ReadAll(importResp.Body)
+
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
+	w.WriteHeader(importResp.StatusCode)
+	w.Write(respBody)
+}
+
 func handleExportCSV(w http.ResponseWriter, r *http.Request) {
 	s := collector.snapshot()
 	if s.OutFile == "" {