fix(search): treat a provider 408 as a retryable read timeout

Author: waleedlatif1

apps/sim/lib/sim-search/live/application.test.ts

@@ -796,6 +796,11 @@ describe('authorized live retrieval', () => {
       new McpError(ErrorCode.RequestTimeout, 'TimeoutError'),
       { retryable: true, message: expect.stringContaining('took too long') },
     ],
+    [
+      'a provider request timeout response',
+      new NativeSearchError('unavailable', 'Provider request failed (408).', undefined, 408),
+      { retryable: true, message: expect.stringContaining('timed out') },
+    ],
     [
       'a native request socket timeout',
       Object.assign(new Error('Request timed out after 10000ms'), { code: 'ETIMEDOUT' }),

apps/sim/lib/sim-search/live/application.ts

@@ -777,7 +777,7 @@ function liveReadFailure(error: unknown, provider: string, deadline?: AbortSigna
       )
     if (error.status === 'rate_limited')
       return new LiveReadError(error.message, true, error.retryAfterSeconds)
-    if (error.status === 'timeout')
+    if (error.status === 'timeout' || error.httpStatus === 408)
       return new LiveReadError(`${name} timed out reading this document. Try again.`, true)
     if (error.httpStatus === 404 || error.httpStatus === 410)
       return new OrchestrationError(