Containerize the application with ROCm GPU support for AMD Radeon R9700:
- Add Dockerfile with PyTorch/PyG ROCm 5.6 wheels
- Add docker-compose.yml with dashboard, live-trading, and train services
- Add .dockerignore and .env.example for configuration
Fix benchmark script to use batch_size instead of num_stocks for variable
dimensions, and replace fragile partial model surgery with a standalone MLP
for memory estimation.
Fix data pipeline to skip dates with no next trading date instead of
fabricating zero returns.
Add slippage to paper broker, optional mark-to-market prices to broker
interface, and health check endpoint for container orchestration.
