[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/test/data/seed/real_assets_import_test.dart

@@ -0,0 +1,52 @@
+import 'dart:io';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:life_helper/data/db/app_database.dart';
+import 'package:life_helper/data/seed/seed_importer.dart';
+import 'package:path/path.dart' as p;
+
+/// Loads the real assets/seed/*.json files from disk (bypasses rootBundle
+/// which needs Flutter binding) and runs them through SeedImporter end-to-end.
+/// This is the strongest signal that the adapters and the hand-crafted JSON
+/// agree on field names and CHECK-constraint values.
+void main() {
+  late AppDatabase db;
+  final repoRoot = Directory.current.path;
+
+  Future<String> diskLoader(String path) async {
+    final f = File(p.join(repoRoot, path));
+    return f.readAsString();
+  }
+
+  setUp(() {
+    db = AppDatabase.memory();
+  });
+
+  tearDown(() async {
+    await db.close();
+  });
+
+  test('real seed assets import end-to-end', () async {
+    final importer = SeedImporter(db, loadAsset: diskLoader);
+    final ran = await importer.importIfNeeded();
+    expect(ran, true);
+
+    final pCount = (await db.select(db.protocols).get()).length;
+    final bpCount = (await db.select(db.breakProtocols).get()).length;
+    final cfCount = (await db.select(db.commonFrames).get()).length;
+    final mCount = (await db.select(db.methodologies).get()).length;
+    final fpCount = (await db.select(db.framePatterns).get()).length;
+    final rmiCount = (await db.select(db.rewardMenuItems).get()).length;
+    final refCount = (await db.select(db.references).get()).length;
+    final dpCount = (await db.select(db.dietPatterns).get()).length;
+
+    expect(pCount, greaterThanOrEqualTo(30));
+    expect(bpCount, greaterThanOrEqualTo(5));
+    expect(cfCount, 5);
+    expect(mCount, greaterThanOrEqualTo(15));
+    expect(fpCount, greaterThanOrEqualTo(20));
+    expect(rmiCount, greaterThanOrEqualTo(20));
+    expect(refCount, greaterThanOrEqualTo(50));
+    expect(dpCount, greaterThanOrEqualTo(3));
+  });
+}