fix(error-classifier): match insufficient balance/funds as quota_exceeded

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

@@ -127,7 +127,7 @@ export function classifyErrorType(error: unknown): string | undefined {
     errorName?.includes("billingerror") ||
     /quota.?exceeded/i.test(message) ||
     /subscription.*quota/i.test(message) ||
-    /insufficient.?quota/i.test(message) ||
+    /insufficient.?(?:quota|balance|funds?)/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) ||