diff --git a/app/api/routes.py b/app/api/routes.py
index e27674d..d6709dd 100644
--- a/app/api/routes.py
+++ b/app/api/routes.py
@@ -1,8 +1,9 @@
 from __future__ import annotations
 
+from datetime import datetime
 from typing import Literal, Optional
 
-from fastapi import APIRouter, BackgroundTasks, Depends
+from fastapi import APIRouter, Depends, Request
 from fastapi.responses import HTMLResponse
 from sqlalchemy import select
 from sqlalchemy.orm import Session
@@ -45,17 +46,28 @@ def list_runs(db: Session = Depends(get_db)) -> list[AgentRun]:
 
 @router.post("/agent/runs/daily", response_model=RunTriggerRead)
 def trigger_daily_run(
-    background_tasks: BackgroundTasks,
+    request: Request,
     settings: Settings = Depends(get_settings),
     db: Session = Depends(get_db),
 ) -> RunTriggerRead:
-    # 手动搜索复用定时任务入口，避免测试按钮和自动调度走出两套采集逻辑。
+    # 手动搜索投递到调度器线程，避免HTTP请求承载长时间Grok搜索任务。
     running = db.scalar(
         select(AgentRun).where(AgentRun.status == "running").order_by(AgentRun.id.desc()).limit(1)
     )
     if running is not None:
         return RunTriggerRead(status="running", run_id=running.id)
-    background_tasks.add_task(run_scheduled_job, settings)
+    scheduler = getattr(request.app.state, "scheduler", None)
+    if scheduler is not None and scheduler.running:
+        scheduler.add_job(
+            run_scheduled_job,
+            trigger="date",
+            run_date=datetime.now(),
+            args=[settings],
+            id=f"manual-intelligence-{datetime.now().timestamp()}",
+            max_instances=1,
+        )
+        return RunTriggerRead(status="started")
+    run_scheduled_job(settings)
     return RunTriggerRead(status="started")