🚀 Project optimization and cleanup

- Remove deprecated generate_documentation.py (2187 lines, 71MB HTML output)
- Remove unused comprehensive_workflow_renamer.py (396 lines)
- Replace import-workflows.sh with Python import_workflows.py (better error handling)
- Remove Chinese README to simplify project structure
- Enhance run.py with CLI arguments and better configuration
- Update requirements.txt with precise version constraints
- Overall: Removed ~2600+ lines of unused/deprecated code
- Improved: Error handling, logging, and development workflow

requirements.txt

@@ -1,3 +1,5 @@
-fastapi>=0.104.0
-uvicorn>=0.24.0
-pydantic>=2.4.0
+# N8N Workflows API Dependencies
+# Core API Framework
+fastapi>=0.104.0,<1.0.0
+uvicorn[standard]>=0.24.0,<1.0.0
+pydantic>=2.4.0,<3.0.0