Version bump: 3.1.0 3.1.1

Version Updates:
- Core application version (src/__init__.py)
- Web API version (src/web_api.py)
- Main application logging (src/main.py)
- Package setup version (setup.py)
- Documentation generation (docs workflow)
- Release workflow example version
- Badge generation script
- Integration test version display
- README.md badge version
- Setup and deployment documentation
- Git initialization scripts

 Patch Release (3.1.1):
- Workflow token migration fixes (GITHUB_TOKEN  GH_TOKEN)
- Pip installation warning elimination
- Improved workflow reliability and logging
- Better Gitea compatibility
- Enhanced error handling and validation

 Files Updated:
- 13 files with version references updated
- Consistent versioning across all components
- Ready for release tagging and deployment

tests/test_integration.py

@@ -165,7 +165,7 @@ def test_logging():
 
 def main():
     """Run all tests"""
-    print("🧪 Running integration tests for Northern Thailand Ping River Monitor v3.1.0")
+    print("🧪 Running integration tests for Northern Thailand Ping River Monitor v3.1.1")
     print("=" * 60)
     
     tests = [