補強 5.5 自癒安全回看

database/ai_models.py

@@ -121,14 +121,14 @@ class AIInsight(Base):
     product_sku = Column(String(50))
     content = Column(Text, nullable=False)
     metadata_json = Column(Text)                         # JSON extra payload
-    avg_quality = Column(Float, default=0.0)
-    status = Column(String(20), default='active')        # active / archived
+    avg_quality = Column(Float, default=0.5)
+    status = Column(String(20), default='approved')      # approved / pending / rejected / archived
     decay_exempt = Column(Boolean, default=False)
     ai_model = Column(String(50))
     feedback_up = Column(Integer, default=0)
     feedback_down = Column(Integer, default=0)
-    confidence = Column(Float, default=1.0)
-    created_by = Column(String(50))
+    confidence = Column(Float, default=0.5)
+    created_by = Column(String(50), default='system')
     created_at = Column(DateTime, default=datetime.now)
     updated_at = Column(DateTime, default=datetime.now, onupdate=datetime.now)
     # embedding 欄位為 pgvector 型別，透過 raw SQL 寫入，此處不聲明以避免型別衝突