Discord bot inbound adapter (adapters/inbound/discord_bot.py):
- ChatService injected directly — no HTTP roundtrip to FastAPI API
- No module-level singleton: create_bot() factory for construction
- Pure functions extracted for testing: build_answer_embed,
build_error_embed, parse_conversation_id
- Uses message.reference.resolved cache before fetch_message
- Error embeds never leak exception details
- 19 new tests covering embed building, footer parsing, error safety
Removed old app/ directory (9 files):
- All functionality preserved in hexagonal domain/, adapters/, config/
- Old test_basic.py removed (superseded by 120 adapter/domain tests)
Other changes:
- docker-compose: api uses main:app, discord-bot uses run_discord.py
with direct ChatService injection (no API dependency)
- Removed unused openai dependency from pyproject.toml
- Removed app/ from hatch build targets
Test suite: 120 passed, 1 skipped
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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