Deletes oanda_daemon.py, oanda_executor.py, their 28 tests and the daemon-only
config keys (oanda.lot_size/quality_gate/max_hold_bars). The Oanda data
provider and credentials stay — it is the live candle feed. 402 tests.
Claude-Session: https://claude.ai/code/session_01FC4s6VCURFte4dub4xKxYL
End-to-end map: external services → providers/news layer → signal core
(engine + factory + aggregator) → SignalReport → four delivery surfaces,
plus the backtester replaying the same core. Regenerate with
venv/bin/python docs/architecture_diagram.py after architecture changes.
Claude-Session: https://claude.ai/code/session_01Aq1jZ6jBsBdEC2xT3u46SA