[Bug] API Error: Non-streaming request receives event-stream response (HTTP 200)

**Bug Description**
I keep getting this error.

⏺ API Error: API returned an empty or malformed response (HTTP 200) — check for a proxy or gateway intercepting the request. Response: content-type event-stream, body is an event stream (the non-streaming request was answered with a stream), 11945 bytes, request-id req_011CeMjReajcu51wQFzK4QYH, server cloudflare, intermediary headers anthropic-* cf-cache-status cf-ray. This was the non-streaming retry of streaming request (no Anthropic request-id), which failed with: other; 0 stream events received.

**Environment Info**
- Platform: darwin
- Terminal: Apple_Terminal
- Version: 2.1.241
- Feedback ID: 54a29729-ba81-4a4e-8340-1c71009b37a6

**Errors**
```json
[{"error":"UnexpectedApiResponseError: API returned an empty or malformed response (HTTP 200) — check for a proxy or gateway intercepting the request. Response: content-type event-stream, body is an event stream (the non-streaming request was answered with a stream), 11945 bytes, request-id req_011CeMjReajcu51wQFzK4QYH, server cloudflare, intermediary headers anthropic-* cf-cache-status cf-ray. This was the non-streaming retry of streaming request (no Anthropic request-id), which failed with: other; 0 stream events received.\n at (/$bunfs/root/cli:21879:9380)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-08-24T14:29:14.913Z"}]
```

The report only identifies the bundled `cli` stack-trace entry at line 21879:9380; begin by reproducing the response-handling failure and tracing that entry. Done means the reported non-streaming request is handled correctly when it receives an event-stream response, with the malformed-response behavior verified.

Rédigé par le modèle d'indexation à partir du texte de l'issue.