[damarals]

Closes #30

Summary

• Replaced the placeholder app/deck/[id].tsx with the unified deck page (lifted from app/review/[id].tsx); deleted the review/[id] route. Library entry and post-generation flow now both land on the same screen.
• The post-generation enhancements (sparse/minor-drops InlineAlerts, kept/skipped filter pills, dropped-tracks list, "X cards · Y skipped" subtitle) render purely as drops.length > 0 conditionals — no mode flag, no route param. When opened from the library the store is empty for that id, so all the enhancements short-circuit and the screen falls back to a plain card list with a "X cards · created Mon DD, YYYY" subtitle.
• Restored back navigation: dropped headerBackVisible: false and gestureEnabled: false from the page's Stack.Screen options; removed the hardcoded title from the layout-level deck/[id] entry so the in-screen headerTitle (driven by deck.name) wins.
• Flipped app/resolving.tsx redirect from /review/${id} to /deck/${id}.
• YearEditor now dismisses without committing on Android hardware back (via BackHandler.addEventListener('hardwareBackPress', …) while editingIsrc != null) and on tap outside (via Keyboard.addListener('keyboardDidHide', …) — the existing keyboardShouldPersistTaps="handled" on the FlatList collapses the soft keyboard on tap-outside, which we mirror to clear the edit state).

Test plan

• npm run typecheck clean
• npm run lint clean
• npm test — 140/140 pass
• Post-generation: create a deck via Generate → resolves → lands on /deck/[id] with drops UI (subtitle "X cards · Y skipped", InlineAlerts, filter pills, dropped rows visible)
• Library: open a saved deck from home → lands on /deck/[id] with the same screen but no drops UI; subtitle reads "X cards · created Mon DD, YYYY"
• Header back arrow and edge-swipe gesture both work
• Tap a year cell to start editing; press Android back → editor dismisses without writing override
• Tap a year cell to start editing; tap anywhere outside the input → keyboard dismisses → editor dismisses without writing override