feat(Notes): add folder management to notes, allowing notes to be categorized into folders, and update related components for folder selection and display

prisma/schema.prisma

@@ -25,6 +25,7 @@ model User {
   dailyCheckboxes DailyCheckbox[]
   tasks           Task[]           @relation("TaskOwner")
   tags            Tag[]            @relation("TagOwner")
+  folders         Folder[]         @relation("FolderOwner")
 
   @@map("users")
 }
@@ -72,6 +73,7 @@ model Tag {
   taskTags     TaskTag[]
   primaryTasks Task[]    @relation("PrimaryTag")
   noteTags     NoteTag[]
+  folders      Folder[]
 
   @@unique([name, ownerId]) // Un nom de tag unique par utilisateur
   @@map("tags")
@@ -142,13 +144,33 @@ model Note {
   content   String   // Markdown content
   userId    String
   taskId    String?  // Tâche associée à la note
+  folderId  String?  // Dossier contenant la note
   createdAt DateTime @default(now())
   updatedAt DateTime @updatedAt
   user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)
   task      Task?    @relation(fields: [taskId], references: [id])
+  folder    Folder?  @relation(fields: [folderId], references: [id])
   noteTags  NoteTag[]
 }
 
+model Folder {
+  id        String   @id @default(cuid())
+  name      String
+  userId    String
+  tagId     String?  // Tag associé au dossier
+  parentId  String?  // Dossier parent pour sous-dossiers
+  order     Int      @default(0)
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+  user      User     @relation("FolderOwner", fields: [userId], references: [id], onDelete: Cascade)
+  tag       Tag?     @relation(fields: [tagId], references: [id])
+  parent    Folder?  @relation("FolderHierarchy", fields: [parentId], references: [id], onDelete: Cascade)
+  children  Folder[] @relation("FolderHierarchy")
+  notes     Note[]
+
+  @@map("folders")
+}
+
 model NoteTag {
   noteId String
   tagId  String