feat(brand): recolor the icon from purple to the site's pink

[chappie-daemon]

Closes #853 and covers the README-logo part of the follow-up: the mark moves from purple to the site's pink accent, and the README logo stops depending on a user-images.githubusercontent.com upload.

What changed

• website/site/src/assets/logo.png — hue-mapped the three purple bands to the pink ramp (preserving per-pixel saturation/value so anti-aliasing survives); zero visibly-purple pixels remain
• website/site/public/favicon.webp (32px) and apple-touch-icon.webp (180px) — regenerated from the recolored source
• resources/favicon.ico — all three BMP entries (16/20/30) recolored in place
• Hero film re-rendered at 1080p (video + low) and media re-encoded (pnpm run media); the brand mark on the film is now pink; poster regenerated
• README.md — logo src now points at a repo-hosted .github/assets/logo.jpg (recolored 1280px); .github/assets/logo.png added as the transparent master

Verification

• Perceptual check on the recolored logo: 0 pixels where blue dominates red by >10 (the previous check caught near-white anti-aliasing pixels with 1–2 unit channel noise — not visible)
• New poster: headline pink, magenta planet with its teal rim intact (by design), zero purple
• Render pipeline: framefield renders in the GPU container (1020 frames × 2 quality passes), ffmpeg encode via pnpm run media

[changeset-bot]

🦋 Changeset detected

Latest commit: 1aca6af

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
nostream-website	Patch

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[github-actions]

🔍 Site preview for this PR (includes all changes on this branch): https://nostream-web-pr-858.cameri.workers.dev/preview/858/

The https://ema.tnsor.network/preview/858/ form serves the same build once this PR merges — the production router that proxies /preview/* ships with it.

Updates with every push to this PR; deleted when the PR closes.

[greptile-apps]

Confidence Score: 5/5

[Low impact] The PR appears safe to merge; no actionable defects were found.

Summary

Changes the logo and icons to pink, refreshes the hero videos and poster, and moves the README logo into the repository.

• Nostream’s site and hero media now use the site’s pink accent for the mark.
• The README logo now comes from an image stored in the repository.

_{Reviews (1) · Last reviewed commit: "feat(brand): recolor the icon from purpl..." · Reviewed by Greptile}