feat(core): add HTTP 499 to retryable errors and map to RetryableQuotaError (#20432)

packages/sdk/src/agent.integration.test.ts

@@ -144,14 +144,14 @@ describe('GeminiCliAgent Integration', () => {
   });
 
   it('propagates errors from dynamic instructions', async () => {
+    const goldenFile = getGoldenPath('agent-static-instructions');
     const agent = new GeminiCliAgent({
       instructions: () => {
         throw new Error('Dynamic instruction failure');
       },
       model: 'gemini-2.0-flash',
-      fakeResponses: RECORD_MODE
-        ? undefined
-        : getGoldenPath('agent-dynamic-instructions'),
+      recordResponses: RECORD_MODE ? goldenFile : undefined,
+      fakeResponses: RECORD_MODE ? undefined : goldenFile,
     });
 
     const session = agent.session();