- Deleted `js/magnet.js` as it was a redundant wrapper for `js/magnetUtils.js`.
- Refactored `js/services/videoNotePayload.js`, `js/ui/components/EditModal.js`, and `js/nostr/nip71.js` to use `magnetUtils.js` and `magnetShared.js`.
- Updated `tests/magnet-utils.test.mjs` to remove tests for the deleted file.
- Removed unused exports `DEFAULT_FEED_CONFIG` and `DEFAULT_CONFIG_SCHEMA` from `js/feedEngine/engine.js` and `index.js`.
- Verified changes with unit tests.