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/features/notifications/services/discord_service.dart

@@ -0,0 +1,68 @@
+import 'dart:convert';
+import 'package:http/http.dart' as http;
+
+class DiscordService {
+  String? webhookUrl;
+
+  /// Send a notification to Discord
+  Future<bool> sendNotification({
+    required String title,
+    required String message,
+    String? imageUrl,
+  }) async {
+    if (webhookUrl == null || webhookUrl!.isEmpty) {
+      print('Discord webhook URL not configured');
+      return false;
+    }
+
+    try {
+      final embed = {
+        'title': title,
+        'description': message,
+        'color': 0x4CAF50, // Sage green (hex color)
+        'timestamp': DateTime.now().toIso8601String(),
+      };
+
+      if (imageUrl != null) {
+        embed['thumbnail'] = {'url': imageUrl};
+      }
+
+      final response = await http.post(
+        Uri.parse(webhookUrl!),
+        headers: {'Content-Type': 'application/json'},
+        body: jsonEncode({
+          'embeds': [embed],
+        }),
+      );
+
+      return response.statusCode == 204;
+    } catch (e) {
+      print('Error sending Discord notification: $e');
+      return false;
+    }
+  }
+
+  /// Send expiration alert
+  Future<void> sendExpirationAlert({
+    required String itemName,
+    required int daysUntilExpiration,
+  }) async {
+    String emoji = '⚠️';
+    String urgency = 'Warning';
+
+    if (daysUntilExpiration <= 0) {
+      emoji = '🚨';
+      urgency = 'Expired';
+    } else if (daysUntilExpiration <= 3) {
+      emoji = '⚠️';
+      urgency = 'Critical';
+    }
+
+    await sendNotification(
+      title: '$emoji Food Expiration Alert - $urgency',
+      message: daysUntilExpiration <= 0
+          ? '**$itemName** has expired!'
+          : '**$itemName** expires in $daysUntilExpiration day${daysUntilExpiration == 1 ? '' : 's'}!',
+    );
+  }
+}