migrate from supabase to postgres

models/noi_tu.py

@@ -1,19 +1,18 @@
-from pydantic import BaseModel
-from datetime import datetime
-from typing import Optional
-import json
+from sqlalchemy import Column, Integer, String
+from infra.db.base import Base
 
-class DiscordNoiTu(BaseModel):
-    id: Optional[int] = None
-    word: str
-    meaning: Optional[str] = None
+class DiscordNoiTu(Base):
+    __tablename__ = "dictionary_vietnamese_two_words"
+    
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    word = Column(String(255), nullable=False, unique=True)
     
     def to_dict(self):
         return {
             'id': self.id,
             'word': self.word,
-            'meaning': self.meaning,
         }
     
     def to_json(self):
+        import json
         return json.dumps(self.to_dict())