fix(live): 监控页三修——①收益率改首快照基线(与列表同口径,治共用QMT账户下cap兜底的假900%)②组合实盘成交落库_sync_trades(轮询broker当日成交→live_trades,此前完全没人写成交表)③updated_at北京时间显示+策略参数JSON改表格 [vps]

sanguo_api/routes_live.py

@@ -135,11 +135,22 @@ def list_lives():
 
 @router.get("/live/{aid}", dependencies=[Depends(verify_token)])
 def get_live(aid: int):
-    from sanguo_live.persistence import get_account
+    from sanguo_live.persistence import get_account, get_first_balance, get_last_balance
 
     acc = get_account(_db_path["path"], aid)
     if not acc:
         raise HTTPException(404, "account not found")
+    # 收益率与列表页同口径:首快照为基线。监控页此前用 initial_capital 兜底,
+    # 共用 QMT 账户时 total=1000万 vs cap=100万 → 假 900%(2026-08-14 实况)。
+    last = get_last_balance(_db_path["path"], aid)
+    first = get_first_balance(_db_path["path"], aid)
+    baseline = (first or {}).get("total") if first else None
+    acc["latest_equity"] = (last or {}).get("total") if last else None
+    acc["latest_date"] = (last or {}).get("date") if last else None
+    if last and baseline:
+        acc["total_return"] = (last.get("total", 0) - baseline) / baseline
+    else:
+        acc["total_return"] = None
     return acc