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

README.md

@@ -67,18 +67,6 @@ A comprehensive cryptocurrency trading platform with multi-exchange support, rea
 
 ## Quick Start
 
-### Docker (Recommended)
-
-```bash
-# Build and run
-docker-compose up --build
-
-# Access application
-open http://localhost:8000
-```
-
-### Development
-
 **Prerequisites**:
 - Python 3.11+
 - Node.js 18+
@@ -210,7 +198,6 @@ DATABASE_URL=postgresql+asyncpg://user:password@localhost/dbname
 - **PostgreSQL**: 14+ (required for database)
 - **Redis**: 5.0+ (required for state management)
 - **Celery**: Included in requirements.txt (for background tasks)
-- **Docker**: Optional, for containerized deployment
 
 ## Features in Detail
 
@@ -320,20 +307,6 @@ pytest -m integration
 pytest -m e2e
 ```
 
-## Docker Deployment
-
-```bash
-# Build
-docker build -t crypto-trader:latest .
-
-# Run
-docker run -d \
-  -p 8000:8000 \
-  -v $(pwd)/data:/app/data \
-  -v $(pwd)/config:/app/config \
-  crypto-trader:latest
-```
-
 ## Contributing
 
 We welcome contributions! See [Contributing Guidelines](docs/developer/contributing.md) for details.