🔧 Fix encoding issues - Add English version scripts

Fix:
- Remove Chinese characters causing encoding errors
- Create pure English version scripts

New files:
- setup.bat: Simple configuration script (English)
- start_app.bat: Auto-deploy script (English)
- README_QUICKSTART.md: Quick start guide

🚀 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

setup.bat

@@ -0,0 +1,34 @@
+@echo off
+cd /d "%~dp0"
+
+echo Creating .env configuration file...
+echo.
+
+(
+echo DATABASE_URL=postgresql+asyncpg://qquiz:qquiz_password@localhost:5432/qquiz_db
+echo SECRET_KEY=qquiz-secret-key-for-development-change-in-production-32chars
+echo AI_PROVIDER=openai
+echo OPENAI_API_KEY=sk-your-openai-api-key-here
+echo OPENAI_BASE_URL=https://api.openai.com/v1
+echo OPENAI_MODEL=gpt-4o-mini
+echo ALLOW_REGISTRATION=true
+echo MAX_UPLOAD_SIZE_MB=10
+echo MAX_DAILY_UPLOADS=20
+echo CORS_ORIGINS=http://localhost:3000,http://127.0.0.1:3000
+echo UPLOAD_DIR=./uploads
+) > .env
+
+echo Done! .env file created.
+echo.
+echo IMPORTANT: Please edit OPENAI_API_KEY in .env file
+echo.
+echo Opening .env file now...
+timeout /t 2 /nobreak >nul
+
+notepad .env
+
+echo.
+echo Configuration complete!
+echo Now you can run: start_app.bat
+echo.
+pause