claude recommends some TODOs

TODO.md

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+# TODO
+
+## Quick Wins
+
+| Issue | Effort |
+|-------|--------|
+| Remove debug `console.log` in `options/main.js:174-175` | 1 min |
+| Sync manifest versions (4.3.65 vs 4.3.66) | 1 min |
+| Delete unused `TEMPLATE_FIELDSET` in `options/main.js:8` | 1 min |
+| Delete dead `setCookie`/`getCookie` in `content-script/main.js:657-678` | 1 min |
+| Fix `SEC_IN_WEEK` naming in `utils.js:69` (it's actually minutes) | 1 min |
+| Move duplicated regexes to `shared/utils.js` | 5 min |
+| Delete commented-out code blocks in `content-script/main.js` | 5 min |
+| Add Page Visibility API to pause polling when tab is hidden | 10 min |
+
+## Code Quality
+
+- [ ] Auto-generate `idToShortId` map from `SECTIONS` instead of manual maintenance
+- [ ] Add storage validation/migration for schema changes between versions
+- [ ] Improve error handling beyond `console.log(error)`
+- [ ] Clean up event listeners in `options/main.js` to prevent memory leaks
+
+## i18n / Localization
+
+Hardcoded English strings that break for non-English YouTube:
+- `content-script/main.js:171` — `'for you'` comparison
+- `content-script/main.js:211` — `'Streamed'` check
+- `content-script/main.js:467-468` — `'All'`, `'Related'` chip names
+
+## Incomplete Features
+
+- `utils.js:14` — TODO: validate start time < end time for schedules
+- `utils.js:32` — TODO: force endTime to come after startTime
+
+## Fragility
+
+YouTube frequently changes their DOM structure. Monitor these selectors:
+- `ytd-rich-grid-row`
+- `#metadata-line span`
+- `ytd-thumbnail-overlay-time-status-renderer`
+- `yt-chip-cloud-chip-renderer`