feat: initialize zhixing-web with React, React Router, and Tailwind CSS

- Set up the main application structure with App component and routing.
- Implemented global state management for UI theme using Zustand.
- Created API utilities for fetching system status.
- Developed system status page with responsive design and theme toggle.
- Added testing setup with Vitest and initial tests for system status page.
- Configured TypeScript with appropriate settings for the application.
- Integrated Tailwind CSS for styling and responsive design.
- Established Vite configuration for development and testing environments.

.gitignore

@@ -0,0 +1,21 @@
+.DS_Store
+.env
+.env.*
+!.env.example
+.idea/
+.vscode/
+
+# Python
+__pycache__/
+*.py[cod]
+.coverage
+.pytest_cache/
+.python-version
+.ruff_cache/
+.venv/
+htmlcov/
+
+# Node.js
+node_modules/
+dist/
+coverage/