chore(dev): stop.bat 仅 ASCII，避免 Windows GBK 乱码断行

cmd 按 ANSI 解析 .bat，中文提示改由带 BOM 的 stop.ps1 输出。

Co-authored-by: Cursor <cursoragent@cursor.com>

.cursor/rules/jiang13-bbs-local-dev.mdc

@@ -57,6 +57,10 @@ npm.cmd run dev
 
 双击 / 运行仓库根 `stop.bat`（或 `./stop.sh`）即可，无需开任务管理器。
 
+### Windows `.bat` 编码
+
+`cmd.exe` 按系统 ANSI（中文 Windows 多为 GBK）解析 `.bat`，**禁止**在 `.bat` 里写 UTF-8 中文（会乱码断行，出现 `'/' 不是内部或外部命令`）。`.bat` 保持 ASCII；中文提示放 `stop.ps1`（UTF-8 BOM）或英文。
+
 ## 遗留目录
 
 `backend/cmd/jiang13/data/` 是错误 cwd 的产物，禁止当数据源。发现后把 `uploads/` 合并进 `backend/data/uploads/`，再删遗留目录。

stop.bat

@@ -1,21 +1,19 @@
 @echo off
+REM ASCII-only: cmd.exe on Chinese Windows misparses UTF-8 .bat as GBK and breaks lines.
 title jiang13-bbs stopper
 echo ============================================
 echo   jiang13-bbs Dev Stopper
 echo ============================================
 echo.
-echo 按端口终止监听进程树（:3000 前端 / :3001 后端）...
-echo.
 
-REM 仅关 Cursor 终端 / Ctrl+C 往往杀不掉 go run / node 的子进程；
-REM 此处按 Listen 端口取 OwningProcess，再 taskkill /T 杀整棵树。
 powershell -NoProfile -ExecutionPolicy Bypass -File "%~dp0stop.ps1"
 if errorlevel 1 (
-  echo [WARN] stop.ps1 执行异常，可手动：taskkill /T /F /PID ^<pid^>
+  echo [WARN] stop.ps1 failed. Manual: taskkill /T /F /PID ^<pid^>
+  pause
+  exit /b 1
 )
 
 echo.
-echo [OK] 端口清理完成。
-echo PostgreSQL（Docker）未动；若要停库：docker compose down
+echo [OK] Done. Postgres untouched; stop DB with: docker compose down
 echo ============================================
 pause

stop.ps1

@@ -1,11 +1,15 @@
-# 按 Listen 端口终止进程树（含子进程）。默认 :3000 前端 / :3001 后端。
-# 由 stop.bat 调用；也可直接：powershell -File stop.ps1
+# Kill process trees listening on given ports. Default: :3000 frontend / :3001 backend.
+# Called by stop.bat; or: powershell -File stop.ps1
 
 param(
   [int[]]$Ports = @(3000, 3001)
 )
 
 $ErrorActionPreference = 'SilentlyContinue'
+[Console]::OutputEncoding = [System.Text.Encoding]::UTF8
+
+Write-Host "Stopping listeners on :3000 / :3001 (process trees)..."
+Write-Host ""
 
 foreach ($port in $Ports) {
   $pids = @(
@@ -13,12 +17,15 @@ foreach ($port in $Ports) {
       Select-Object -ExpandProperty OwningProcess -Unique
   )
   if (-not $pids -or $pids.Count -eq 0) {
-    Write-Host "  :$port 空闲"
+    Write-Host "  :$port idle"
     continue
   }
   foreach ($procId in $pids) {
     if ($procId -le 0) { continue }
-    Write-Host "  :$port -> PID $procId (含子进程)"
+    Write-Host "  :$port -> PID $procId (tree)"
     & taskkill.exe /T /F /PID $procId | Out-Null
   }
 }
+
+Write-Host ""
+Write-Host "Port cleanup finished."