0.1.22
fix: retry transient model-call failures with backoff A dropped connection to the provider (TypeError: fetch failed, ELECTRON-4) aborted the whole walkthrough run. Add modelRetryMiddleware (3 retries, exponential backoff) gated to transient errors — network drops, timeouts, 429, 5xx — while auth/config errors still fail fast. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>