- new src/hooks/ui/useIsMobile.ts (matchMedia + useSyncExternalStore)
replacing the resize-handler hook inlined inside pages/site/page.tsx
- new src/hooks/ui/usePrefersReducedMotion.ts
- new src/data/site/dialogueIds.ts so site and intro components stop
carrying hard-coded narrator IDs
- siteConfig: add SITE_BACKGROUND_STYLE shared by SiteLayout and
SiteMobileBlocker, rename forcedName to presetPlayerName, fix the
swapped id/label pairing on situation cards
- useSiteStore: rename selectedExperience/Situation to *Index so the
stored value (an array index) is obvious in callers
- audioConfig: drop dead AUDIO_PATHS placeholders
- propagate the renames and SITE_BACKGROUND_STYLE through SiteLayout,
SiteWelcomeScreen, SiteSituationScreen and pages/site/page.tsx
Tom Boullay