Two partial-update follow-ups:
- save_settings normalized a POSTed instrument_profiles by FILLING every omitted
profile with defaults and replacing wholesale, so a one-profile update reset
the others. Validate each PROVIDED profile individually and merge the partial
over the persisted set inside the lock — /api/settings is partial-merge.
- the string-count picker posted only string_count, so the backend silently
reset a now-invalid tuning to Standard while the UI kept the old value
(settings/tuner desync). Clamp + post the valid tuning too, mirroring the
instrument-switch path.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude Opus 4.8 (1M context)
f985b4dd04
