Reads don't actually need bookmarks to load. Reading progress (kind:39802)
is independent and stands on its own. Bookmarks are just optional enrichment.
Changed:
- readsController.start() no longer takes bookmarks parameter
- Pass empty array to fetchAllReads instead
- Load reads immediately in App.tsx like highlights/writings
- No more circular dependency on bookmarks loading first
This is simpler and loads reading progress faster.