feat: 支持 agent 运行取消功能

backend/src/v1/agent/router.py

@@ -37,6 +37,7 @@ from v1.agent.schemas import (
     AttachmentReference,
     AttachmentSignedUrlResponse,
     AttachmentUploadResponse,
+    CancelRunResponse,
     HistorySnapshotResponse,
     TaskAcceptedResponse,
 )
@@ -147,6 +148,34 @@ async def enqueue_run(
     )
 
 
+@router.post(
+    "/runs/{thread_id}/cancel",
+    response_model=CancelRunResponse,
+    status_code=status.HTTP_202_ACCEPTED,
+)
+async def cancel_run(
+    thread_id: str,
+    service: Annotated[AgentService, Depends(get_agent_service)],
+    current_user: Annotated[CurrentUser, Depends(get_current_user)],
+    run_id: str = Query(
+        alias="runId",
+        min_length=1,
+        max_length=128,
+        pattern=r"^[A-Za-z0-9_-]+$",
+    ),
+) -> CancelRunResponse:
+    canceled = await service.cancel_run(
+        thread_id=thread_id,
+        run_id=run_id,
+        current_user=current_user,
+    )
+    return CancelRunResponse(
+        threadId=canceled.thread_id,
+        runId=canceled.run_id,
+        accepted=canceled.accepted,
+    )
+
+
 @router.get("/runs/{thread_id}/events")
 async def stream_events(
     request: Request,