Add HyperFrames skills (from heygen-com/hyperframes, Apache-2.0)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FXVsD1DgdzZLiPuwtKzMSY

.claude/skills/remotion-to-hyperframes/scripts/tests/fixtures/blocker.tsx

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+import React, { useState, useEffect, useLayoutEffect } from "react";
+import { useCurrentFrame, AbsoluteFill, delayRender, continueRender } from "remotion";
+import { Button } from "@mui/material";
+
+// Custom hook in `export const useFoo = ...` form — earlier custom-hook
+// regex anchored to `^\s*(?:function|const|let)` and missed the `export`
+// prefix. This covers the regression.
+export const useFadeMixed = (n: number) => {
+  const f = useCurrentFrame();
+  return f / n;
+};
+
+export const BadComposition: React.FC = () => {
+  const frame = useCurrentFrame();
+  const [data, setData] = useState<string | null>(null);
+  const [handle] = useState(() => delayRender());
+
+  // Multi-line useEffect body with commas inside (fillRect args) — regression
+  // coverage for r2hf/use-effect-deps. An earlier regex `[^,]+` would stop at
+  // the first comma inside the body and miss the deps array entirely.
+  useEffect(() => {
+    fetch("/api/data")
+      .then((r) => r.json())
+      .then((d) => {
+        const ctx = document.createElement("canvas").getContext("2d");
+        ctx?.fillRect(0, 0, 100, 100);
+        setData(d.text);
+        continueRender(handle);
+      });
+  }, [handle]);
+
+  // Expression-bodied useEffect — the form `useEffect(() => fetch(...), [deps])`
+  // has no closing `}`, which an earlier regex anchored on. This and the
+  // useLayoutEffect below cover the false-negative cases Miguel surfaced.
+  useEffect(() => fetch("/api/heartbeat"), [frame]);
+  useLayoutEffect(() => (document.title = `frame ${frame}`), [frame]);
+
+  return (
+    <AbsoluteFill>
+      <Button>{data ?? "loading"}</Button>
+      <span>{frame}</span>
+    </AbsoluteFill>
+  );
+};
+
+export const calculateMetadata = async () => {
+  const res = await fetch("/api/duration");
+  const { duration } = await res.json();
+  return { durationInFrames: duration };
+};