chore: Remove Dockerfile and docker-compose.yml, update README and migration guide for backend log checks

docs/migration_guide.md

@@ -44,8 +44,7 @@ crypto_trader/
 │       ├── pages/  # Page components
 │       ├── api/    # API client
 │       └── ...
-├── src/            # Existing Python code (unchanged)
-└── docker-compose.yml
+└── src/            # Existing Python code (unchanged)
 ```
 
 ## What Was Preserved
@@ -67,7 +66,6 @@ crypto_trader/
 - **UI Layer**: PyQt6 widgets → React components
 - **Communication**: Direct function calls → HTTP API
 - **Real-time Updates**: Signal/slot → WebSocket
-- **Deployment**: AppImage → Docker
 
 ## Migration Steps
 
@@ -92,13 +90,6 @@ Created React frontend with:
 - TypeScript for type safety
 - WebSocket for real-time updates
 
-### 3. Docker Deployment
-
-Created Docker setup for easy deployment:
-- Multi-stage build (frontend + backend)
-- Single container deployment
-- Volume mounts for data persistence
-
 ## Running the New Architecture
 
 ### Development
@@ -116,13 +107,7 @@ Created Docker setup for easy deployment:
    npm run dev
    ```
 
-### Production
-
-```bash
-docker-compose up --build
-```
-
-Access at: http://localhost:8000
+Access at: http://localhost:3000 (frontend) and http://localhost:8000 (API)
 
 ## API Endpoints
 
@@ -194,10 +179,9 @@ const { lastMessage } = useWebSocket('ws://localhost:8000/ws/')
 
 1. **Modern UI**: Access to entire web ecosystem
 2. **Cross-platform**: Works on any device
-3. **Easier deployment**: Docker vs AppImage
-4. **Better development**: Hot-reload, better tooling
-5. **Maintainability**: Easier to update
-6. **Accessibility**: Access from anywhere
+3. **Better development**: Hot-reload, better tooling
+4. **Maintainability**: Easier to update
+5. **Accessibility**: Access from anywhere
 
 ## Backward Compatibility
 
@@ -219,4 +203,4 @@ The existing Python code remains unchanged. You can still:
 For issues or questions:
 - Check API docs: http://localhost:8000/docs
 - Review deployment guide: `docs/deployment/web_architecture.md`
-- Check backend logs: `docker-compose logs`
+- Check backend logs in the terminal where uvicorn is running