- Describe 2×3 portrait vs 3×2 landscape grid layout
- Navigation: edge keys fall through to page nav
- Unread badge detail (ellipsis + badge coexistence)
- (gone) label for removed contacts
- Two pinning paths: empty tile picker and DM context menu
- Pin picker order: favourited contacts first, then recent DMs
- Auto-move when contact already pinned elsewhere
- Unpin via DM context menu
- Reordering via Settings › Home Pages
