chore: clean up examples, update ML binaries and risk tests
- Delete 14 unused example files (-3,543 lines): config, adaptive-strategy,
data, storage, trading_engine, api_gateway, backtesting, trading_service, chaos
- Update ML training/eval binaries: improved CLI args, completion tracking,
CUDA test cleanup, hyperopt enhancements
- Fix KAN network and TFT module adjustments
- Update risk test assertions for consistency
- Fix backtesting repositories and promotion manager
- Update .serena project config and Cargo dependencies
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
afd85b2f8f