Add dbquery.py for MariaDB and sqlitequery.py for SQLite databases
in MCP service containers. Both scripts wrap docker compose exec to
simplify database inspection during development.
- dbquery.py: Query Nextcloud MariaDB with vertical/JSON output
- sqlitequery.py: Query MCP service SQLite DBs with service aliases
(mcp, oauth, keycloak, basic) and column/JSON output modes
- Document both scripts in CLAUDE.md Database Inspection section
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Chris Coutinho