Deployed databases can persist without the revision_history table,
causing /play/<token>/revise to crash with sqlite3.OperationalError.
- log_revision() now creates the table on the fly if it is missing.
- app.py runs init_db() at import time (safe CREATE TABLE IF NOT EXISTS)
so new deployments auto-create missing tables on startup.
Bump patch version 0.4.0 -> 0.4.1.
- Refresh app.py module and route docstrings for runtime settings,
MP3 tagging, rate limiting, revision workflow, and admin actions.
- Clarify config.py and models.py comments.
- Update template comments/CSS for dashboard filters, request detail,
player page, and settings page.
- Rewrite README.md with current features, status flow, file layout,
deployment variables, and troubleshooting.
- Refresh REVIEW.md quick-reference.
- Add MAX_REVISIONS to docker-compose.yml environment list.
- Expand requirements.txt comment coverage.
No version history or changelog included.