feat(deploy): add Docker full-stack deployment and server pack scripts

Enable one-click production deploy via docker-compose.prod.yml, with deployment docs and zip packaging for Baota upload.

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

pack.bat

@@ -0,0 +1,23 @@
+@echo off
+setlocal
+cd /d "%~dp0"
+
+where node >nul 2>&1
+if errorlevel 1 (
+  echo [ERROR] Node.js not found. Install Node.js 20+ first.
+  pause
+  exit /b 1
+)
+
+node pack.mjs
+set EXIT_CODE=%ERRORLEVEL%
+
+echo.
+if not %EXIT_CODE%==0 (
+  echo Pack failed.
+  pause
+  exit /b %EXIT_CODE%
+)
+
+pause
+exit /b 0