Sweeps README, docs/, example configs, code docstrings, report and
notification subject lines, plugin catalog URL default, and stray
comments in Dockerfile/entrypoint.sh/.gitignore. Adds a legacy note
to docs/core/configuration.md explaining the FABLEDSCRYER_* fallback.
docker-compose DB credentials intentionally left as fabledscryer to
preserve the existing pgdata volume.
- Replace individual volume mounts (playbook_cache, plugins) with single app_data:/data mount
- Change FABLEDNETMON_DATABASE__URL to FABLEDNETMON_DATABASE_URL (underscore to hyphen)
- Simplify config.example.yaml to focus on required database URL setting
- Document that other settings are now managed via the Settings UI
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>