[Developer] #204 Phase 1 MVP — Flutter app skeleton complete

- Drift 21 tables (8 catalog + 11 user + habit_dose_variants + meta_kv)
  with R1~R10 CHECK constraints and 19 indexes
- 8 hand-crafted seed JSON catalogs in app/assets/seed/
  (refs 84, protocols 34, methodologies 21, frame_patterns 30,
   reward_menu_items 30, break_protocols 8, common_frames 5, diet_patterns 5)
- 6 domain functions: recommend_variant, compute_streak,
  validate_frame_level, active_habit_quota, weekly_minimum_ratio,
  seed_importer (transactional, idempotent)
- 4 vertical-slice Riverpod screens: HabitList, HabitCreate, CheckIn, Streak
- 31 unit tests passing; flutter analyze clean
- OQ-5 streak semantics: missing entry ≠ explicit blank
  (missing = end of history; only TrackerValue.blank triggers Never-miss-twice)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/pubspec.yaml

@@ -0,0 +1,44 @@
+name: life_helper
+description: "Huberman + Atomic Habits + Tiny Habits + If-Then. Local-first habit/checklist/todo."
+publish_to: 'none'
+version: 0.1.0+1
+
+environment:
+  sdk: ^3.12.2
+
+dependencies:
+  flutter:
+    sdk: flutter
+  cupertino_icons: ^1.0.8
+
+  # State management
+  flutter_riverpod: ^2.5.1
+
+  # Local DB (Drift = sqlite ORM)
+  drift: ^2.18.0
+  sqlite3_flutter_libs: ^0.5.0
+  path_provider: ^2.1.0
+  path: ^1.9.0
+
+  # Models / serialization
+  freezed_annotation: ^2.4.0
+  json_annotation: ^4.9.0
+
+  # IDs
+  ulid: ^2.0.0
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^6.0.0
+
+  # Codegen
+  drift_dev: ^2.18.0
+  build_runner: ^2.4.0
+  freezed: ^2.5.0
+  json_serializable: ^6.8.0
+
+flutter:
+  uses-material-design: true
+  assets:
+    - assets/seed/