feat(api/repo): Allow to config repository implementation (#21458)

Signed-off-by: -LAN- <laipz8200@outlook.com>
Co-authored-by: QuantumGhost <obelisk.reg+git@gmail.com>

api/models/model.py

@@ -50,7 +50,6 @@ class AppMode(StrEnum):
     CHAT = "chat"
     ADVANCED_CHAT = "advanced-chat"
     AGENT_CHAT = "agent-chat"
-    CHANNEL = "channel"
 
     @classmethod
     def value_of(cls, value: str) -> "AppMode":
@@ -934,7 +933,7 @@ class Message(Base):
     created_at: Mapped[datetime] = mapped_column(db.DateTime, server_default=func.current_timestamp())
     updated_at = db.Column(db.DateTime, nullable=False, server_default=func.current_timestamp())
     agent_based = db.Column(db.Boolean, nullable=False, server_default=db.text("false"))
-    workflow_run_id = db.Column(StringUUID)
+    workflow_run_id: Mapped[str] = db.Column(StringUUID)
 
     @property
     def inputs(self):