first commit

backend/app/models.py

@@ -144,3 +144,15 @@ class MediaFile(Base):
     
     # Relationships
     answer = relationship("Answer", back_populates="media_files")
+
+
+class AIConfiguration(Base):
+    __tablename__ = "ai_configurations"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    provider = Column(String(50), nullable=False)  # openai, gemini
+    api_key = Column(Text, nullable=False)
+    model_name = Column(String(100), nullable=False)
+    is_active = Column(Boolean, default=True)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())