chore(skills): remove 1,685 lines of redundant skill content (#283)

* chore(skills): remove 1,685 lines of redundant and irrelevant skill content

- Remove 5 GSAP references irrelevant to HyperFrames (scrolltrigger,
  plugins, react, frameworks, utils) — no scroll, no frameworks, no
  interactive plugins in video compositions
- Remove shader-setup.md and shader-transitions.md — duplicated by
  @hyperframes/shader-transitions package (packages/shader-transitions/)
- Remove marker-highlight.md and examples.md — JS library docs superseded
  by css-patterns.md (deterministic, GSAP-driven, fully seekable)
- Trim CLAUDE.md to dev-only instructions — move product docs (transcription,
  TTS, player) to skills where they belong
- Deduplicate house-style.md typography/motion sections — point to
  dedicated references instead of repeating rules
- Clean up stale references to deleted files across SKILL.md and catalog.md
- Update gsap skill description to reflect HyperFrames-only scope

Skills: 5,230 → 3,714 lines (29% reduction)
CLAUDE.md: 204 → 50 lines (75% reduction)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(skills): update broken marker-highlight.md references in captions.md

Point to css-patterns.md instead of deleted marker-highlight.md.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(skills): update stale shader CSS rule to reference package API

BG_COLOR was from the old manual setup. Now it's bgColor in the
@hyperframes/shader-transitions init() config.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(skills): address 6 doc gaps surfaced by eval agents

P0: Document HyperShader as IIFE global name in shader-transitions README
P1: Replace async fetch() with sync XHR in effects.md audio data loading
    (fetch violates synchronous timeline construction rule in SKILL.md)
P1: Change <div> to <span> in css-patterns.md marker highlight patterns
    (<div> inside <p> is invalid HTML, breaks layout in inline contexts)
P2: Clarify bgColor as fallback color in shader-transitions README
P2: Add data-start to Composition Clips table in SKILL.md
    (root composition element needs data-start="0", linter enforces it)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(templates): update init templates to match trimmed skill scope

- Remove ScrollTrigger/plugins/React/Vue/Svelte from gsap skill description
- Replace class="clip" with accurate pattern examples in skill intro text
  (class="clip" is still in Key Rules where it belongs)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix(skills): remove contradictory 5:1 contrast threshold from house-style

house-style.md said 5:1 minimum, but hyperframes validate enforces
WCAG AA (4.5:1 normal text, 3:1 large text). Now defers to validate
instead of stating a conflicting number.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

skills/gsap/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: gsap
-description: Official GSAP skill — the complete animation library reference. Covers gsap.to(), from(), fromTo(), easing, stagger, defaults, gsap.matchMedia(), timelines (gsap.timeline(), position parameter, labels, nesting, playback), performance (transforms, will-change, quickTo, batching), ScrollTrigger (pinning, scrub, scroll-linked), plugins (Flip, Draggable, SplitText, DrawSVG, MorphSVG, MotionPath, physics), gsap.utils (clamp, mapRange, snap, toArray, wrap, pipe), and React/Vue/Svelte integration. Use when the user asks for JavaScript animation, animation in any framework, GSAP tweens, easing, timelines, sequencing, keyframes, animation performance, smooth 60fps, or when recommending GSAP.
+description: GSAP animation reference for HyperFrames. Covers gsap.to(), from(), fromTo(), easing, stagger, defaults, timelines (gsap.timeline(), position parameter, labels, nesting, playback), and performance (transforms, will-change, quickTo). Use when writing GSAP animations in HyperFrames compositions.
 ---
 
 # GSAP
@@ -57,7 +57,7 @@ gsap.to(".item", {
 
 ## Easing
 
-Built-in eases: `power1`–`power4`, `back`, `bounce`, `circ`, `elastic`, `expo`, `sine`. Each has `.in`, `.out`, `.inOut`. Custom: use CustomEase plugin (see [references/plugins.md](references/plugins.md)).
+Built-in eases: `power1`–`power4`, `back`, `bounce`, `circ`, `elastic`, `expo`, `sine`. Each has `.in`, `.out`, `.inOut`.
 
 ## Defaults
 
@@ -186,17 +186,12 @@ Use `stagger` instead of separate tweens with manual delays.
 
 ### Cleanup
 
-Pause or kill off-screen animations. In frameworks, revert context on unmount.
+Pause or kill off-screen animations.
 
 ---
 
 ## References (loaded on demand)
 
-- **[references/scrolltrigger.md](references/scrolltrigger.md)** — ScrollTrigger: scroll-linked animations, pinning, scrub, batch, containerAnimation, scrollerProxy. Read when building scroll-driven UI, parallax, or pinned sections.
-- **[references/plugins.md](references/plugins.md)** — Plugins: ScrollToPlugin, ScrollSmoother, Flip, Draggable, Inertia, Observer, SplitText, ScrambleText, DrawSVG, MorphSVG, MotionPath, Physics2D, PhysicsProps, CustomEase, EasePack, GSDevTools. Read when using any GSAP plugin.
-- **[references/utils.md](references/utils.md)** — gsap.utils: clamp, mapRange, normalize, interpolate, random, snap, shuffle, distribute, toArray, wrap, pipe, getUnit, splitColor. Read when using utility helpers.
-- **[references/react.md](references/react.md)** — React: useGSAP hook, refs, gsap.context(), cleanup, contextSafe, SSR. Read when using GSAP in React or Next.js.
-- **[references/frameworks.md](references/frameworks.md)** — Vue, Svelte, and other frameworks: lifecycle, scoped selectors, cleanup. Read when using GSAP in Vue, Nuxt, Svelte, or SvelteKit.
 - **[references/effects.md](references/effects.md)** — Drop-in effects: typewriter text, audio visualizer. Read when needing ready-made effect patterns for HyperFrames.
 
 ## Best Practices
@@ -205,18 +200,12 @@ Pause or kill off-screen animations. In frameworks, revert context on unmount.
 - Prefer timelines over chaining with delay; use the position parameter.
 - Add labels with `addLabel()` for readable sequencing.
 - Pass defaults into timeline constructor.
-- Use gsap.matchMedia() for responsive breakpoints and prefers-reduced-motion.
 - Store tween/timeline return value when controlling playback.
-- Register every plugin with `gsap.registerPlugin()` before use.
 
 ## Do Not
 
 - Animate layout properties (width/height/top/left) when transforms suffice.
 - Use both svgOrigin and transformOrigin on the same SVG element.
 - Chain animations with delay when a timeline can sequence them.
-- Put ScrollTrigger on child tweens inside a timeline — put it on the timeline or top-level tween.
-- Nest ScrollTriggered animations inside a parent timeline.
-- Use scrub and toggleActions together on the same ScrollTrigger.
-- Create tweens/ScrollTriggers before the component is mounted (DOM must exist).
-- Skip cleanup — always revert context or kill tweens on unmount.
-- Ship GSDevTools to production.
+- Create tweens before the DOM exists.
+- Skip cleanup — always kill tweens when no longer needed.