feat: add tags and notes fields to Item model

prisma/schema.prisma

@@ -17,14 +17,16 @@ model List {
 }
 
 model Item {
-  id          String   @id @default(cuid())
+  id          String    @id @default(cuid())
   title       String
   description String?
-  completed   Boolean  @default(false)
-  priority    String   @default("medium") // low, medium, high
+  completed   Boolean   @default(false)
+  priority    String    @default("medium") // low, medium, high
   dueDate     DateTime?
-  createdAt   DateTime @default(now())
-  updatedAt   DateTime @updatedAt
+  tags        Json      @default("[]")
+  notes       String?   @db.Text
+  createdAt   DateTime  @default(now())
+  updatedAt   DateTime  @updatedAt
   listId      String
-  list        List     @relation(fields: [listId], references: [id], onDelete: Cascade)
-}
+  list        List      @relation(fields: [listId], references: [id], onDelete: Cascade)
+}