New SettingsMutation set: the per-frame settings mutators
(handle_volume_keys → record_window_geometry_changes →
persist_window_geometry_after_debounce) run as a deterministic chain
ordered before GameMutation, so every reader already after GameMutation
observes the current frame's settings transitively. The four readers
outside that ordering (modal enter-speed chain, focus-ring pulse, HUD
avatar, and the game plugin's pre-mutation chain) are ordered after the
set explicitly.
SettingsResource ambiguities: 21 → 0. Baseline ratchets 198 → 171.
Refs #143
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
funman300