feat: Add Nanaxe server with Docker, GitHub Actions CI/CD, and auto-deployment

- Add complete server infrastructure with Gitea, API, PostgreSQL
- Implement Obsidian-compatible markdown mindmap converter
- Add Flutter service for server synchronization
- Configure GitHub Actions for automated build and deploy
- Add production docker-compose with health checks
- Include VPS setup and deployment scripts
- Add comprehensive deployment documentation

lib/models/alarm_model.dart

@@ -35,8 +35,12 @@ class AlarmModel {
 
   factory AlarmModel.fromFirestore(DocumentSnapshot doc) {
     final data = doc.data() as Map<String, dynamic>;
+    return AlarmModel.fromMap(doc.id, data);
+  }
+
+  factory AlarmModel.fromMap(String id, Map<String, dynamic> data) {
     return AlarmModel(
-      id: doc.id,
+      id: id,
       title: data['title'] ?? '',
       taskId: data['taskId'],
       eventId: data['eventId'],
@@ -107,10 +111,10 @@ class AlarmModel {
 
   DateTime get nextOccurrence {
     if (!isRepeating) return dateTime;
-    
+
     final now = DateTime.now();
     if (dateTime.isAfter(now)) return dateTime;
-    
+
     switch (repeatPattern) {
       case 'daily':
         return dateTime.add(const Duration(days: 1));
@@ -124,7 +128,8 @@ class AlarmModel {
         while (!repeatDays.contains(next.weekday)) {
           next = next.add(const Duration(days: 1));
         }
-        return DateTime(next.year, next.month, next.day, dateTime.hour, dateTime.minute);
+        return DateTime(
+            next.year, next.month, next.day, dateTime.hour, dateTime.minute);
       default:
         return dateTime;
     }