- Generate runtime_id for service-token issuance (CLI and API)
- Implement GET /v1/assets endpoint with asset view and strategy_params
- Implement GET /v1/user_info endpoint with trading_enabled and broker credentials
- Implement POST /v1/assets/{asset_id}/ledger/trades with idempotency support
- Update auth service to support runtime_id tracking and credential encryption
- Add comprehensive test coverage for v1 endpoints (dcy-002 implementation)
- Update postgres repository for ledger and broker credential queries
- Ensure all tests pass for feature validation