Run Black formatter across 83 files and fix 1514 ruff violations:
- E722: bare except → typed exceptions (17 fixes)
- E711/E712/E721: comparison style fixes with noqa for SQLAlchemy (44 fixes)
- F841: unused variable assignments (70 fixes)
- F541/F401: f-string and import cleanup (1383 auto-fixes)
Remaining 925 errors are all F403/F405 (star imports) — structural,
requires converting to explicit imports in a separate effort.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Remove master_debug = True and replace all conditional INFO/DEBUG log
calls with unconditional logger.debug(). Also switches log_return_value
to logger.debug and removes the associated dead commented-out code.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
DNS failures and refused connections raised raw aiohttp errors to Discord
users. Added except aiohttp.ClientError handlers to db_get, db_patch,
db_post, db_put, and db_delete — each logs the error and raises
DatabaseError for consistent handling upstream.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
