Add launch video and README demo

[a-baran-orhan]

What changed

• add the 28-second Posecode builder video in 16:9 and vertical formats
• add the payoff still and reproducible Remotion source/assets
• add pinned Remotion render commands and dependencies
• restructure the top of the README so it explains the problem before showing a clickable demo
• move the three-GIF gallery into a dedicated movement examples section

Why

The README already had strong motion GIFs, but it did not show the complete prompt-to-Posecode-to-render workflow. The new demo gives developers an optional 28-second overview without adding another autoplaying visual to the page.

Impact

README visitors can click the payoff image or demo link to watch the builder overview. Maintainers can reproduce the horizontal, vertical, and still assets from the checked-in Remotion source.

Validation

• npm test — 259 tests passed
• npm run typecheck — passed
• git diff --check — passed
• npm run video:cut2:still — rendered the payoff still successfully
• verified both MP4 outputs are H.264/AAC, 28.05 seconds, at 1920×1080 and 1080×1920
• verified checked-in MP4s match the launch-folder originals by SHA-1

Remotion emits a dependency-detection advisory because the parser/MCP workspaces use Zod 3 while Remotion carries Zod 4 in its own dependency tree; the render completes successfully and the workspace dependency graph remains valid.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
posecode	Ready	Preview, Comment	Jul 14, 2026 8:56pm