自动排队生成量化因子挖掘任务，心跳派发后将高 IC 因子入库。

Co-authored-by: Cursor <cursoragent@cursor.com>

app/scheduler.py

@@ -13,6 +13,7 @@ from zoneinfo import ZoneInfo
 from app.config import settings
 from app.database import session_scope
 from app.jobs.daily_yield import run_daily_yield_cron
+from app.services.alpha_queue import maybe_generate_alpha_batch
 from app.services.heartbeat import mark_stale_nodes
 from app.services.locks import acquire_lock
 from app.services.tasks import dispatch_random_tasks
@@ -45,6 +46,13 @@ def start_scheduler() -> None:
         replace_existing=True,
         misfire_grace_time=120,
     )
+    scheduler.add_job(
+        _guard(_alpha_job),
+        IntervalTrigger(hours=2, timezone=UTC),
+        id="alpha_batch",
+        replace_existing=True,
+        misfire_grace_time=600,
+    )
     yield_zone = ZoneInfo(settings.yield_timezone)
     scheduler.add_job(
         _guard(_yield_job),
@@ -98,6 +106,20 @@ def _dispatch_job() -> None:
         tasks = dispatch_random_tasks(session)
     if tasks:
         logger.info("dispatched %s tasks", len(tasks))
+    _refill_alpha_queue(force=False)
+
+
+def _alpha_job() -> None:
+    _refill_alpha_queue(force=True)
+
+
+def _refill_alpha_queue(force: bool) -> None:
+    if not acquire_lock("alpha_batch", timedelta(minutes=5)):
+        return
+    with session_scope() as session:
+        created = maybe_generate_alpha_batch(session, force=force)
+    if created:
+        logger.info("alpha batch slices=%s force=%s", len(created), force)
 
 
 def _yield_job() -> None: