fix(a11y): reduced-motion for spinner/call-avatar; tap-to-skip boot; AA accent contrast

- SendingSpinClass and CallAvatarAnimation respect prefers-reduced-motion
  (static opacity fallback), matching MsgAppearClass.
- Terminal boot overlay dismisses on click/tap and is aria-hidden.
- Primary.Main: Midnight #6b7ca8 -> #6f80aa (4.29 -> 4.51:1), Lotus
  Terminal Light #c44e00 -> #ba4a00 (4.14 -> 4.52:1), hue preserved.

Fixes #84
Fixes #86
Fixes #52

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA

src/app/styles/Animations.css.ts

@@ -36,25 +36,46 @@ const glowPulse = keyframes({
   },
 });
 
+// Wobble/glow/spin only run under the same no-preference guard as
+// MsgAppearClass below; prefers-reduced-motion users get a static state.
 export const WobbleAnimation = style({
+  '@media': {
+    '(prefers-reduced-motion: no-preference)': {
       animation: `${wobble} 2000ms ease-in-out`,
       animationIterationCount: 'infinite',
+    },
+  },
 });
 
 export const GlowAnimation = style({
+  '@media': {
+    '(prefers-reduced-motion: no-preference)': {
       animation: `${glowPulse} 2000ms ease-out`,
       animationIterationCount: 'infinite',
+    },
+  },
 });
 
 export const CallAvatarAnimation = style({
+  '@media': {
+    '(prefers-reduced-motion: no-preference)': {
       animation: `${wobble} 2000ms ease-in-out, ${glowPulse} 2000ms ease-out`,
       animationIterationCount: 'infinite',
+    },
+  },
 });
 
 export const SendingSpinClass = style({
   display: 'inline-block',
-  animation: `${spin} 900ms linear infinite`,
   transformOrigin: 'center',
+  // Static fallback: dim instead of spinning when motion is reduced.
+  opacity: 0.6,
+  '@media': {
+    '(prefers-reduced-motion: no-preference)': {
+      animation: `${spin} 900ms linear infinite`,
+      opacity: 1,
+    },
+  },
 });
 
 const msgAppearKeyframe = keyframes({

src/colors.css.ts

@@ -500,7 +500,9 @@ export const midnightTheme = createTheme(color, {
   },
 
   Primary: {
-    Main: '#6b7ca8',
+    // #6b7ca8 measured 4.29:1 against Background.Container (#111827), below
+    // WCAG AA 4.5:1. Lightened along the same hue/saturation to 4.51:1.
+    Main: '#6f80aa',
     MainHover: '#7989b1',
     MainActive: '#8493b8',
     MainLine: '#8f9dbf',
@@ -651,7 +653,9 @@ export const lotusTerminalLightTheme = createTheme(color, {
     OnContainer: '#2d3d56',
   },
   Primary: {
-    Main: '#c44e00',
+    // #c44e00 measured 4.14:1 against Background.Container (#edf0f5), below
+    // WCAG AA 4.5:1. Darkened along the same hue/saturation to 4.52:1.
+    Main: '#ba4a00',
     MainHover: '#a33f00',
     MainActive: '#8f3700',
     MainLine: '#d45800',

src/lotus-boot.ts

@@ -34,6 +34,8 @@ export function runLotusBootSequence(force = false): void {
 
   const overlay = document.createElement('div');
   overlay.id = 'lt-boot';
+  // Decorative boot animation, not content — hide it from assistive tech.
+  overlay.setAttribute('aria-hidden', 'true');
   overlay.style.cssText = [
     'position:fixed',
     'inset:0',
@@ -79,6 +81,7 @@ export function runLotusBootSequence(force = false): void {
   const dismiss = (): void => {
     clearInterval(interval);
     document.removeEventListener('keydown', onKey);
+    overlay.removeEventListener('click', dismiss);
     overlay.style.transition = 'opacity 0.4s ease';
     overlay.style.opacity = '0';
     setTimeout(() => overlay.remove(), 400);
@@ -88,6 +91,9 @@ export function runLotusBootSequence(force = false): void {
     if (e.key === 'Escape') dismiss();
   };
   document.addEventListener('keydown', onKey);
+  // No touch/click dismiss previously existed — mouse/touch users had no way
+  // to skip besides the keyboard-only Escape hint.
+  overlay.addEventListener('click', dismiss);
 
   let i = 0;
   let text = '';