feat: add scoped alpha sync and local self-correlation

backend/app/main.py

@@ -40,6 +40,7 @@ from .schemas import (
     PnlOutput,
     PreferencesInput,
     ResearchUpdate,
+    SelfCorrelationOutput,
     SessionOutput,
 )
 from .security import bootstrap, cipher, issue_session, require_auth, token_hash, valid_password
@@ -341,6 +342,11 @@ def create_app(settings=None, wq_client=None, ai_model_factory=None):
         async with sessions() as db:
             return await Business(db).get_alpha_pnl(alpha_id)
 
+    @api.get("/alphas/{alpha_id}/self-correlation", response_model=SelfCorrelationOutput, tags=["alphas"])
+    async def self_correlation(alpha_id: str):
+        async with sessions() as db:
+            return await Business(db).get_self_correlation(alpha_id)
+
     @api.post("/sync-jobs", status_code=202, response_model=JobOutput, tags=["sync-jobs"])
     async def new_job(body: JobInput):
         async with sessions.begin() as db: