重构后端技术栈和一些小修改

.gitignore

@@ -1,5 +1,28 @@
+# Dependencies / build outputs
+node_modules/
+vendor/
+dist/
+build/
+works/
 
+# Python
+__pycache__/
+*.py[cod]
+*.pyd
+.venv/
+venv/
+.pytest_cache/
+.mypy_cache/
+
+# Logs
+*.log
+
+# OS / editor
+.DS_Store
+Thumbs.db
+
+# Project-specific (legacy paths)
 SmyWorkCollect-Frontend/build/
 SmyWorkCollect-Frontend/node_modules/
 SmyWorkCollect-Backend/__pycache__/
-SmyWorkCollect-Backend/works/
+SmyWorkCollect-Backend/works/