Initial commit: Sage Kitchen Management App v1.0.0

✨ Features implemented:
- Smart inventory tracking with Hive database
- Barcode scanning with auto-populated product info
- Multiple API fallbacks (Open Food Facts, UPCItemDB)
- Smart expiration date predictions by category
- Discord webhook notifications (persisted)
- Custom sage leaf vector icon
- Material Design 3 UI with sage green theme
- Privacy Policy & Terms of Service
- Local-first, privacy-focused architecture

🎨 UI/UX:
- Home dashboard with inventory stats
- Add Item screen with barcode integration
- Inventory list with expiration indicators
- Settings with persistent preferences
- About section with legal docs

🔧 Technical:
- Flutter 3.35.5 with Riverpod state management
- Hive 2.2.3 for local database
- Mobile scanner for barcode detection
- Feature-first architecture

🤖 Generated with Claude Code (https://claude.com/claude-code)

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

lib/data/local/hive_database.dart

@@ -0,0 +1,61 @@
+import 'package:hive_flutter/hive_flutter.dart';
+import '../../features/inventory/models/food_item.dart';
+import '../../features/settings/models/app_settings.dart';
+
+/// Singleton class to manage Hive database
+class HiveDatabase {
+  static bool _initialized = false;
+
+  /// Initialize Hive
+  static Future<void> init() async {
+    if (_initialized) return;
+
+    await Hive.initFlutter();
+
+    // Register adapters
+    Hive.registerAdapter(FoodItemAdapter());
+    Hive.registerAdapter(LocationAdapter());
+    Hive.registerAdapter(ExpirationStatusAdapter());
+    Hive.registerAdapter(AppSettingsAdapter());
+
+    _initialized = true;
+  }
+
+  /// Get the food items box
+  static Future<Box<FoodItem>> getFoodBox() async {
+    if (!Hive.isBoxOpen('foodItems')) {
+      return await Hive.openBox<FoodItem>('foodItems');
+    }
+    return Hive.box<FoodItem>('foodItems');
+  }
+
+  /// Get the settings box
+  static Future<Box<AppSettings>> getSettingsBox() async {
+    if (!Hive.isBoxOpen('appSettings')) {
+      return await Hive.openBox<AppSettings>('appSettings');
+    }
+    return Hive.box<AppSettings>('appSettings');
+  }
+
+  /// Get or create app settings
+  static Future<AppSettings> getSettings() async {
+    final box = await getSettingsBox();
+    if (box.isEmpty) {
+      final settings = AppSettings();
+      await box.add(settings);
+      return settings;
+    }
+    return box.getAt(0)!;
+  }
+
+  /// Clear all data
+  static Future<void> clearAll() async {
+    final box = await getFoodBox();
+    await box.clear();
+  }
+
+  /// Close all boxes
+  static Future<void> closeAll() async {
+    await Hive.close();
+  }
+}