feat(registry): add yt-comment-card — comment cards

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs/catalog/blocks/yt-comment-card.mdx

@@ -0,0 +1,44 @@
+---
+title: "Comment Cards"
+description: "Social comments typing on over footage: avatar pop, username and time, per-character typewriter, likes row; image avatars or initials chips"
+---
+
+# Comment Cards
+
+Social comments typing on over footage: avatar pop, username and time, per-character typewriter, likes row; image avatars or initials chips
+
+`social` `comments` `creator` `overlay`
+
+<video className="w-full aspect-video rounded-xl object-cover bg-zinc-100 dark:bg-zinc-800" src="https://static.heygen.ai/hyperframes-oss/docs/images/catalog/blocks/yt-comment-card.mp4" poster="https://static.heygen.ai/hyperframes-oss/docs/images/catalog/blocks/yt-comment-card.png" autoPlay muted loop playsInline />
+
+## Install
+
+<CodeGroup>
+
+```bash Terminal
+npx hyperframes add yt-comment-card
+```
+
+</CodeGroup>
+
+## Details
+
+| Property | Value |
+| --- | --- |
+| Type | Block |
+| Dimensions | 1920×1080 |
+| Duration | 8s |
+
+## Files
+
+| File | Target | Type |
+| --- | --- | --- |
+| `yt-comment-card.html` | `compositions/yt-comment-card.html` | hyperframes:composition |
+
+## Usage
+
+After installing, add the block to your host composition:
+
+```html
+<div data-composition-id="yt-comment-card" data-composition-src="compositions/yt-comment-card.html" data-start="0" data-duration="8" data-track-index="1" data-width="1920" data-height="1080"></div>
+```