[Bug] Silent model routing ignoring pinned claude-opus-4-7 setting in settings.json

Bug Description
Max $200 subscriber. Quality has been broken for 5 days. Confirmed
silent model routing despite pinned setting.

settings.json: "model": "claude-opus-4-7"

Actual model served per session (from JSONL logs):
May 15-19: opus-4-7 (work was excellent — built Chrome extension in 4 days)
June 1-4: bouncing between opus-4-7 and opus-4-8
June 6 at 20:51: sonnet-4-6 (silent downgrade, atrocious session)
June 6 at 21:05: opus-4-7

This is the same routing/quality issue acknowledged in your April post.
Recurring problem.

Ask: surface the actually-served model in the UI so users can debug
their own sessions instead of guessing.

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.1.167
• Feedback ID: 78e78af7-cf7c-4124-a091-e70949bd518d

Errors

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