重构扑克牌设计系统：修复后端渲染bug，重写前端编辑器

.gitignore

@@ -0,0 +1,36 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*.pyc
+
+# Distribution / packaging
+dist/
+build/
+*.egg-info/
+*.egg
+
+# Database
+*.sqlite3
+*.db
+
+# Media uploads
+media/upload/
+media/export/
+!media/.gitkeep
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Logs
+*.log
+
+# Environment
+.env
+.env.local