Add HyperFrames skills

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011h6NB8JQtfPc6eRCefEzBB

.agents/skills/hyperframes-animation/transitions/css-radial.md

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+## Radial / Shape
+
+### Circle Iris
+
+Expanding circle from center reveals new scene.
+
+```js
+tl.set(new, { opacity: 1 }, T);
+tl.fromTo(new,
+  { clipPath: "circle(0% at 50% 50%)" },
+  { clipPath: "circle(75% at 50% 50%)", duration: 0.5, ease: "power2.out" }, T);
+tl.set(old, { opacity: 0 }, T + 0.5);
+```
+
+### Diamond Iris
+
+Expanding diamond shape from center.
+
+```js
+tl.set(new, { opacity: 1 }, T);
+tl.fromTo(new,
+  { clipPath: "polygon(50% 50%, 50% 50%, 50% 50%, 50% 50%)" },
+  { clipPath: "polygon(50% -20%, 120% 50%, 50% 120%, -20% 50%)", duration: 0.5, ease: "power2.out" }, T);
+tl.set(old, { opacity: 0 }, T + 0.5);
+```
+
+### Diagonal Split
+
+Old scene shrinks to a triangle in one corner.
+
+```js
+tl.set(new, { opacity: 1, zIndex: 1 }, T);
+tl.set(old, { zIndex: 10, clipPath: "polygon(0% 0%, 100% 0%, 100% 100%, 0% 100%)" }, T);
+tl.to(old, { clipPath: "polygon(60% 0%, 100% 0%, 100% 40%, 60% 0%)", duration: 0.5, ease: "power3.inOut" }, T);
+tl.set(old, { opacity: 0, zIndex: "auto", clipPath: "none" }, T + 0.5);
+tl.set(new, { zIndex: "auto" }, T + 0.5);
+```