pi-rnd v0.2.4

Change /rnd-doctor round-trip probe to use the Explore default agent with model: 'anthropic/claude-haiku-4-5-20251001' instead of general-purpose with no model override. Diagnoses whether the v0.2.2/v0.2.3 hang was caused by general-purpose's reliance on a possibly-unset session default model. Explore is read-only and fast (≤5s typical). If this still hangs we know the issue is broader than model resolution.

Artifacts