feat(brand): Pixel Phase A2 canonical vector artwork pack

apps/web/public/brand/pixel/README.md

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+# Pixel — Phase A2 artwork
+
+This is an **artwork-only**, opt-in vector library. Nothing here changes the existing Creative Cursor logo, Pixel assistant, process illustrations, homepage, PWA, or product interactions.
+
+## Identity reference
+
+The original `/brand/mascots/creators-mascot-working-laptop-queued-laptop-float.svg` and the user's approved Phase A character sheet are anatomical/art-direction references. Pixel has a plush rounded seated body, extremely wide upward-angled ears with graphite tips, small hair tuft, a large rounded face and glossy eyes, tiny smiling muzzle, short forepaws, whiskers, and a curled dark-tipped tail. This collection is a **manual vector adaptation**, not a claim that the original raster-containing SVG has become a lossless vector.
+
+## Library
+
+- `pixel-master.svg`: canonical layered static character
+- `pixel-face-rig.svg`: isolated eyes/pupils/brows/nose/mouth/whiskers
+- `pixel-hero-outline.svg`: ordered, real stroke-only paths with `pathLength="1"` and `data-pencil-order` for Phase B
+- `pixel-static-fallback.svg`: motion-free illustration
+- `pixel-laptop-companion.svg`: optional laptop prop based on the original reference (the prop is not part of the character rig)
+- `expressions/`: ten standalone expression variants
+- `poses/`: eight standalone motion-key illustrations
+- `manifest.json`: inventory and approved artwork-only scope
+
+All exports are standalone local SVGs with internal defs only. No embedded PNG, external URL, script, active animation, CSS injection, or customer media. Existing files and paths remain unchanged.
+
+## Anatomy/animation contract
+
+`#pixel-character` includes `#pixel-head`, `#pixel-ear-left`, `#pixel-ear-right`, `#pixel-tail`, `#pixel-paws`, `#pixel-feet`, and `#pixel-details`. Facial groups include `#pixel-eyes`, `#pixel-eye-left`, `#pixel-eye-right`, `#pixel-pupil-left`, `#pixel-pupil-right`, `#pixel-brows`, `#pixel-whiskers`, `#pixel-nose`, and `#pixel-mouth`. The pose files are static key artwork, **not** animated timelines. The draw-on outline consists of individually addressable contours; render a fully drawn fallback before or without JS.
+
+All individual assets use a `0 0 720 520` viewBox. Preserve the whole aspect ratio; don't crop ear/tail tips or invert the artwork in dark mode. Display on `illustration-paper`. Any subsequent animation must respect reduced motion, pause off-screen, and cap pupil movement inside the eye. Apply violet/coral accents sparingly around Pixel.
+
+## Deterministic maintenance
+
+`apps/web/scripts/build-pixel-phase-a2.mjs` is the single source for these generated assets. Do not hand-edit exports. Modify the builder, run `node apps/web/scripts/build-pixel-phase-a2.mjs --write`, inspect the artwork, and run `node apps/web/scripts/build-pixel-phase-a2.mjs --check`. No third-party build-time dependencies are required.
+
+Phase B animation and Phase C/D homepage integration require a separate PR and artwork sign-off.