feat: display five GLB PnL series with distinct colors

backend/app/business.py

@@ -10,7 +10,7 @@ from uuid import uuid4
 from fastapi import HTTPException
 from sqlalchemy import delete, func, select, update
 
-from .alphas import list_statement, sorted_statement, submission_condition, summary
+from .alphas import glb_pnl_series, list_statement, sorted_statement, submission_condition, summary
 from .jobs import ACTIVE
 from .models import Account, Alpha, Job, JobItem, Pnl, Research, ResearchTag, SelfCorrelation, now
 from .research.provenance import alpha_sources, source_kinds
@@ -140,12 +140,14 @@ class Business:
         ).model_dump(mode="json")
 
     async def get_alpha_pnl(self, alpha_id):
-        if not await self.db.get(Alpha, alpha_id):
+        alpha = await self.db.get(Alpha, alpha_id)
+        if not alpha:
             raise HTTPException(404, "Alpha 尚未同步")
         row = await self.db.get(Pnl, alpha_id)
         return {
             "cached": row is not None,
             "points": row.points if row else [],
+            "series": glb_pnl_series(row.raw, row.points) if row and alpha.region == "GLB" else [],
             "fetched_at": row.fetched_at.isoformat() if row else None,
         }