Six new tests covering the three bugs fixed in the previous commit:
- Retry limit: stops showing toasts after 3 consecutive failures,
resets counter on success
- Skip flag: startFreshSession sets/clears skipNextSessionInitRef,
creates new session even when existing one exists
- Ref stability: switchSession reads activeSession from ref so it
correctly detects "same session" and skips re-initialization
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
8853472c2c