feat: implement Daily management features and update UI

- Marked tasks as completed in TODO for Daily management service, data model, and interactive checkboxes.
- Added a new link to the Daily page in the Header component for easy navigation.
- Introduced DailyCheckbox model in Prisma schema and corresponding TypeScript interfaces for better data handling.
- Updated database schema to include daily checkboxes, enhancing task management capabilities.

prisma/schema.prisma

@@ -29,7 +29,8 @@ model Task {
   assignee    String?
   
   // Relations
-  taskTags    TaskTag[]
+  taskTags      TaskTag[]
+  dailyCheckboxes DailyCheckbox[]
   
   @@unique([source, sourceId])
   @@map("tasks")
@@ -65,3 +66,20 @@ model SyncLog {
   
   @@map("sync_logs")
 }
+
+model DailyCheckbox {
+  id        String   @id @default(cuid())
+  date      DateTime // Date de la checkbox (YYYY-MM-DD)
+  text      String   // Texte de la checkbox
+  isChecked Boolean  @default(false)
+  order     Int      @default(0) // Ordre d'affichage pour cette date
+  taskId    String?  // Liaison optionnelle vers une tâche
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+  
+  // Relations
+  task      Task?    @relation(fields: [taskId], references: [id], onDelete: SetNull)
+  
+  @@index([date])
+  @@map("daily_checkboxes")
+}