fix(runtime-fallback): detect prettified quota errors without HTTP status codes (fixes #2747)

src/hooks/runtime-fallback/error-classifier.ts

@@ -21,6 +21,13 @@ export function getErrorMessage(error: unknown): string {
     }
   }
 
+  const errorObj2 = error as Record<string, unknown>
+  const name = errorObj2.name
+  if (typeof name === "string" && name.length > 0) {
+    const nameColonMatch = name.match(/:\s*(.+)/)
+    if (nameColonMatch) return nameColonMatch[1].trim().toLowerCase()
+  }
+
   try {
     return JSON.stringify(error).toLowerCase()
   } catch {
@@ -112,6 +119,18 @@ export function classifyErrorType(error: unknown): string | undefined {
     return "model_not_found"
   }
 
+  if (
+    /quota.?exceeded/i.test(message) ||
+    /subscription.*quota/i.test(message) ||
+    /insufficient.?quota/i.test(message) ||
+    /billing.?(?:hard.?)?limit/i.test(message) ||
+    /exhausted\s+your\s+capacity/i.test(message) ||
+    /out\s+of\s+credits?/i.test(message) ||
+    /payment.?required/i.test(message)
+  ) {
+    return "quota_exceeded"
+  }
+
   return undefined
 }
 
@@ -181,6 +200,10 @@ export function isRetryableError(error: unknown, retryOnErrors: number[]): boole
     return true
   }
 
+  if (errorType === "quota_exceeded") {
+    return true
+  }
+
   if (statusCode && retryOnErrors.includes(statusCode)) {
     return true
   }