Vendor domain and mt5-client from hermes into crates/ so the repo can
be pushed to GitHub without external path dependencies.
Also includes all bug fixes from autonomous session:
- impulse SL fix (SL at impulse candle low/high, not zone edge)
- pip_size fix for 5-decimal pairs
- fill_ok premature cancellation fix
- TIMEOUT_CANDLES, MIN_FVG_PIPS, MIN_SL_PIPS env vars
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
romysaputrasihananda