更新

start_backend.bat

@@ -0,0 +1,49 @@
+@echo off
+setlocal EnableExtensions
+cd /d "%~dp0backend"
+
+set "PLAYWRIGHT_BROWSERS_PATH=%LOCALAPPDATA%\ms-playwright"
+
+echo [System] Checking port 8800...
+for /f "tokens=5" %%P in ('%SystemRoot%\System32\netstat.exe -aon ^| %SystemRoot%\System32\findstr.exe ":8800" ^| %SystemRoot%\System32\findstr.exe "LISTENING"') do (
+  if not "%%P"=="0" (
+    echo [System] Stopping process on port 8800, PID %%P
+    %SystemRoot%\System32\taskkill.exe /F /PID %%P >nul 2>&1
+  )
+)
+
+REM Fallback if netstat loop failed
+powershell -NoProfile -ExecutionPolicy Bypass -Command ^
+  "$p = Get-NetTCPConnection -LocalPort 8800 -State Listen -ErrorAction SilentlyContinue | Select-Object -ExpandProperty OwningProcess -Unique; foreach ($i in $p) { if ($i) { Write-Host ('[System] Stopping PID ' + $i); Stop-Process -Id $i -Force -ErrorAction SilentlyContinue } }" ^
+  2>nul
+
+%SystemRoot%\System32\PING.EXE -n 2 127.0.0.1 >nul
+
+echo [System] Starting FastAPI backend...
+echo [System] URL: http://localhost:8800
+echo [System] Web UI: http://localhost:8800 - use start_web.bat for full UI
+echo [System] Playwright browsers: %PLAYWRIGHT_BROWSERS_PATH%
+echo [System] Login flow: wait for browser scan, auto-save cookie
+echo.
+
+if not exist ".venv\Scripts\python.exe" (
+  echo [Error] Python environment not found. Run install.bat first.
+  pause
+  exit /b 1
+)
+
+".venv\Scripts\python.exe" -c "import uvicorn" >nul 2>&1
+if errorlevel 1 (
+  echo [Error] uvicorn module not found. Run install.bat first.
+  pause
+  exit /b 1
+)
+
+call ".venv\Scripts\python.exe" -m uvicorn main:app --host 0.0.0.0 --port 8800
+if errorlevel 1 (
+  echo.
+  echo [Error] Backend failed to start.
+  echo         Review the error output above for the actual cause.
+  pause
+  exit /b 1
+)