Qwen support for expert agent

backend/src/database.py

@@ -119,6 +119,9 @@ class Thread(Base):
     name: Mapped[Optional[str]]
     description: Mapped[Optional[str]]
 
+    # Threads can form trees where threads continue each other
+    #previous_thread_id: Mapped[Optional[int]] = mapped_column(ForeignKey("threads.id"))
+
 # A persistent object or value associated with an agent
 class AgentResource(Base):
     __modelname__ = 'agent_resource'
@@ -134,3 +137,11 @@ class AgentResource(Base):
     key: Mapped[str]
     value = mapped_column(JSON, default=None)
 
+class MessageDatum(Base):
+    __modelname__ = 'message_datum'
+    __tablename__ = 'message_data'
+
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    message_id: Mapped[int] = mapped_column(ForeignKey("messages.id"))
+    user_id: Mapped[int] = mapped_column(ForeignKey("users.id"))
+    value = mapped_column(JSON, default=None)