feat: initial commit - Habo habit tracking app

- Complete MVP with Repository Pattern, SQLite storage
- Provider + ChangeNotifier state management
- Navigation 2.0 with deep link support
- Habit CRUD with twoDayRule, notifications, categories
- Backup/Restore via JSON
- Statistics with streak tracking
- Material You theme support
- Biometric lock support
- Desktop widget support
- 27 languages i18n structure
- Comprehensive test suite (87/89 passing)

lib/widgets/habit_progress_indicator.dart

@@ -0,0 +1,24 @@
+import 'package:flutter/material.dart';
+
+class HabitProgressIndicator extends StatelessWidget {
+  final double progress;
+  final double size;
+
+  const HabitProgressIndicator({
+    super.key,
+    required this.progress,
+    this.size = 40,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return SizedBox(
+      width: size,
+      height: size,
+      child: CircularProgressIndicator(
+        value: progress.clamp(0.0, 1.0),
+        strokeWidth: 3,
+      ),
+    );
+  }
+}