Fix Alpaca 500 internal error by adding 3x retry mechanism and preventing UI screen locks

external/Quant.ai/backend/app/broker/alpaca_adapter.py

@@ -30,25 +30,31 @@ class AlpacaAdapter:
 
     def get_account_summary(self) -> Dict:
         """
-        Fetch broker account details.
-        Returns:
-            Dict containing cash, equity, buying power, and account status.
+        Fetch broker account details with retry for Alpaca server 500 glitches.
         """
-        account = self.client.get_account()
-        return {
-            "success": True,
-            "account_number": account.account_number,
-            "status": account.status,
-            "currency": account.currency,
-            "cash": float(account.cash),
-            "portfolio_value": float(account.portfolio_value),
-            "buying_power": float(account.buying_power),
-            "multiplier": float(account.multiplier),
-            "shorting_enabled": account.shorting_enabled,
-            "equity": float(account.equity),
-            "initial_margin": float(account.initial_margin),
-            "maintenance_margin": float(account.maintenance_margin),
-        }
+        import time
+        last_err = None
+        for attempt in range(3):
+            try:
+                account = self.client.get_account()
+                return {
+                    "success": True,
+                    "account_number": account.account_number,
+                    "status": account.status,
+                    "currency": account.currency,
+                    "cash": float(account.cash),
+                    "portfolio_value": float(account.portfolio_value),
+                    "buying_power": float(account.buying_power),
+                    "multiplier": float(account.multiplier),
+                    "shorting_enabled": account.shorting_enabled,
+                    "equity": float(account.equity),
+                    "initial_margin": float(account.initial_margin),
+                    "maintenance_margin": float(account.maintenance_margin),
+                }
+            except Exception as e:
+                last_err = e
+                time.sleep(0.4)
+        raise last_err
 
     def get_open_positions(self) -> List[Dict]:
         """

external/Quant.ai/frontend/src/components/BrokerPanel.tsx

@@ -69,7 +69,9 @@ export function BrokerPanel() {
         setAccount(accJson);
         setErrorMsg(null);
       } else {
-        setErrorMsg(accJson.error || "无法获取 Alpaca 账户信息，请检查 Keys 配置。");
+        if (!account) {
+          setErrorMsg(accJson.error || "无法获取 Alpaca 账户信息，请检查 Keys 配置。");
+        }
       }
 
       // 2. Fetch positions

external/Quant.ai/index.html

@@ -5,7 +5,7 @@
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>frontend</title>
-    <script type="module" crossorigin src="/assets/index-_oL7pVAV.js"></script>
+    <script type="module" crossorigin src="/assets/index-CrPbYtGZ.js"></script>
     <link rel="stylesheet" crossorigin href="/assets/index-DCSOhC_L.css">
   </head>
   <body>

quant.html

@@ -5,7 +5,7 @@
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>frontend</title>
-    <script type="module" crossorigin src="/assets/index-_oL7pVAV.js"></script>
+    <script type="module" crossorigin src="/assets/index-CrPbYtGZ.js"></script>
     <link rel="stylesheet" crossorigin href="/assets/index-DCSOhC_L.css">
   </head>
   <body>

quant/index.html

@@ -5,7 +5,7 @@
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Quant.ai Trading Terminal</title>
-    <script type="module" crossorigin src="/assets/index-_oL7pVAV.js"></script>
+    <script type="module" crossorigin src="/assets/index-CrPbYtGZ.js"></script>
     <link rel="stylesheet" crossorigin href="/assets/index-DCSOhC_L.css">
   </head>
   <body>