fix: decduck's code review

prisma/schema/news.prisma

@@ -1,13 +1,21 @@
-model News {
-  id          String   @id @default(uuid())
-  title       String
-  content     String   @db.Text
-  excerpt     String
-  tags        String[]
-  image       String?
-  publishedAt DateTime @default(now())
-  author      User     @relation(fields: [authorId], references: [id])
-  authorId    String
+model Tag {
+  id   String @id @default(uuid())
+  name String @unique
 
-  @@map("news")
-} 
+  articles Article[]
+}
+
+model Article {
+  id          String @id @default(uuid())
+  title       String
+  description String
+  content     String @db.Text
+
+  tags Tag[]
+
+  image       String? // Object ID
+  publishedAt DateTime @default(now())
+
+  author   User?   @relation(fields: [authorId], references: [id]) // Optional, if no user, it's a system post
+  authorId String?
+}