Drag reorder:
- Separated long-press drag from tap/menu: long-press-and-drag reorders,
tap opens page, overflow menu (three dots) for delete/export
- Fixed combinedClickable conflict that prevented drag from working
Page navigation:
- View-all-pages state persisted in SharedPreferences, restored on startup
- Cleared when navigating back to editor from page list
Delete renumbering:
- After deleting a page, remaining pages are renumbered sequentially
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>