feat: complete Git Repo Manager MVP implementation

Backend (Phase 1-6):
- Pydantic schemas for request/response validation
- Service layer (SSH Key, Server, Repo, Sync)
- API routes with authentication
- FastAPI main application with lifespan management
- ORM models (SshKey, Server, Repo, SyncLog)

Frontend (Phase 7):
- Vue 3 + Element Plus + Pinia + Vue Router
- API client with Axios and interceptors
- State management stores
- All page components (Dashboard, Servers, Repos, SyncLogs, SshKeys, Settings)

Deployment (Phase 8):
- README with quick start guide
- Startup script (start.sh)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/README.md

@@ -0,0 +1,57 @@
+# Git Manager Frontend
+
+Vue 3 frontend for Git Manager application.
+
+## Tech Stack
+
+- Vue 3 - Progressive JavaScript framework
+- Element Plus - Vue 3 UI component library
+- Pinia - State management
+- Vue Router - Official router for Vue.js
+- Axios - HTTP client
+- Vite - Next generation frontend tooling
+
+## Development
+
+```bash
+# Install dependencies
+npm install
+
+# Start development server
+npm run dev
+
+# Build for production
+npm run build
+
+# Preview production build
+npm run preview
+```
+
+## Project Structure
+
+```
+frontend/
+├── src/
+│   ├── api/           # API client modules
+│   ├── assets/        # Static assets
+│   ├── components/    # Reusable components
+│   ├── router/        # Vue Router configuration
+│   ├── stores/        # Pinia stores
+│   ├── views/         # Page components
+│   ├── App.vue        # Root component
+│   └── main.js        # Application entry point
+├── public/            # Public static files
+├── index.html         # HTML template
+├── vite.config.js     # Vite configuration
+└── package.json       # Dependencies
+```
+
+## API Integration
+
+The frontend includes API clients for:
+- Servers management
+- SSH keys management
+- Sync logs
+- System settings
+
+All API calls go through the configured Vite proxy to the backend server.