Adds new database schema migrations to support the implementation of
user reputation tracking and channel-specific culture context.
- Creates migration `0005_large_squadron_sinister.sql` containing
`user_reputations` and `channel_cultures` tables.
- Updates Drizzle migration journal to include the new migration step.
- Adds `fix_prompt.py` utility for managing prompt adjustments.
Container crashed with 'Can't find meta/_journal.json file' because
Drizzle ORM migration files were never generated. Generated migrations
for all 10 schema tables and updated Dockerfile to copy drizzle/ to
/app/drizzle/ where the migrator expects them.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>