Comprehensive Web Interface Guidelines audit: accessibility, motion, and typography

- Add global MotionConfig reducedMotion="user" in root layout
- Add color-scheme: dark, theme-color meta, skip-to-main-content link
- Add aria-hidden={true} to ~60+ decorative icons across 33 files
- Add aria-label to all icon-only buttons (logout, star rating, play, delete, etc.)
- Replace transition-all with specific properties (11 files)
- Add motion-safe: prefix for CSS hover transforms and animate-pulse
- Add prefers-reduced-motion: reduce override in globals.css
- Add useReducedMotion guard to status-dot pulsing animation
- Fix focus-visible styles on auth form inputs (focus → focus-visible, stronger ring)
- Add text-balance to all headings (13 files)
- Replace "..." with "…" (U+2026) in all loading/placeholder text
- Add autocomplete, spellCheck, role="alert" to auth form
- Add aria-label to Switch controls and filmography select
- Fix heading hierarchy (h3 → h2 where h2 was skipped)
- Add break-words to title overview, overscroll-contain to drawer
- Add confirmation dialog for destructive library removal
- Add group-focus-within:opacity-100 for keyboard-accessible backup actions
- Add role="radio" + aria-checked to star rating buttons
- Add aria-label to carousel region, role="img" to TMDB logo SVG
- Add text-foreground to native select for dark mode consistency

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/(pages)/dashboard/_components/welcome-header.tsx

@@ -1,7 +1,7 @@
 export function WelcomeHeader({ name }: { name?: string | null }) {
   return (
     <div>
-      <h1 className="font-display text-3xl tracking-tight">
+      <h1 className="font-display text-3xl tracking-tight text-balance">
         Welcome back{name ? `, ${name}` : ""}
       </h1>
       <p className="mt-1 text-sm text-muted-foreground">