feat: add durable WorldQuant backtests with UI and AI confirmation

backend/app/business.py

@@ -16,8 +16,11 @@ from .schemas import AlphaDetail, AlphaPage, BulkUpdate, JobInput, JobOutput, Re
 
 
 class Business:
-    def __init__(self, db):
+    def __init__(self, db, ai_context=None):
+        from .backtests.service import Backtests
+
         self.db = db
+        self.backtests = Backtests(db, ai_context)
 
     async def search_alphas(self, filters):
         query = list_statement(filters)
@@ -196,6 +199,8 @@ class Business:
 
 async def notify_job(runner, name, result):
     """Notify the in-process runner only after the transaction has committed."""
+    if name in ("start_backtest", "control_backtest"):
+        runner.backtests.wake.set()
     if name == "cancel_job":
         await runner.cancel(result["job_id"])
     if name in ("create_sync_job", "retry_job"):