Add FastAPI backend with agent system

backend/app/routers/scheduler.py

@@ -0,0 +1,42 @@
+from fastapi import APIRouter, Depends
+from app.models.user import User
+from app.routers.auth import get_current_user
+from app.services.scheduler_service import (
+    get_scheduler_status,
+    scheduler,
+    daily_task_analysis,
+    forum_scan_task,
+    graph_rebuild_task,
+    tag_generation_task,
+)
+import logging
+
+router = APIRouter(prefix="/api/scheduler", tags=["定时任务"])
+logger = logging.getLogger(__name__)
+
+
+@router.get("/status")
+async def get_status(current_user: User = Depends(get_current_user)):
+    """获取调度器状态"""
+    return get_scheduler_status()
+
+
+@router.post("/trigger/{job_id}")
+async def trigger_job(job_id: str, current_user: User = Depends(get_current_user)):
+    """手动触发某个定时任务"""
+    job_map = {
+        "daily_task_analysis": daily_task_analysis,
+        "forum_scan": forum_scan_task,
+        "graph_rebuild": graph_rebuild_task,
+        "tag_generation": tag_generation_task,
+    }
+
+    if job_id not in job_map:
+        return {"error": f"未知任务: {job_id}"}
+
+    try:
+        await job_map[job_id]()
+        return {"status": "ok", "job": job_id, "message": "任务已触发执行"}
+    except Exception as e:
+        logger.error(f"手动触发任务失败 {job_id}: {e}")
+        return {"status": "error", "job": job_id, "error": str(e)}