Take the typescale's tracking from Compose, and reset roundness

Tracking now comes from androidx's TypeScaleTokens.kt as sp/16 rem, so Display
Large is -0.0125rem, Title Medium and Body Medium 0.0125rem where material-web's
pre-Expressive numbers stood. The emphasized set gets its own
--md-sys-typescale-emphasized-<style>-tracking, which the emphasized utilities
read: M3 widens four of them and takes Display Large back to zero. Every regular
utility sets `font-variation-settings: normal`, because the property inherits and
body copy inside an emphasized heading is meant to read as itself.

bin/check-font.mjs (fontkit) prints the packaged woff2's fvar axes, so a
re-subset cannot silently drop the ROND axis the emphasized styles depend on;
`npm run check:font` runs it and tests/Feature/FontTest.php runs it through the
configured node binary, skipping when node cannot run (PHP cannot open a woff2
without Brotli).

Plan: docs/plans/material-3-alignment.md step 4, findings core C5, C6, C7.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Qwx5USif3wFFmxtHg5U1g9

package.json

@@ -7,12 +7,14 @@
         "dev": "vite",
         "build:scheme": "esbuild bin/scheme.mjs --bundle --platform=node --format=esm --target=node20 --minify --legal-comments=eof --outfile=resources/node/scheme.mjs",
         "build:shapes": "node bin/shapes.mjs",
-        "build:loading": "node bin/loading-indicator.mjs"
+        "build:loading": "node bin/loading-indicator.mjs",
+        "check:font": "node bin/check-font.mjs"
     },
     "devDependencies": {
         "@material/material-color-utilities": "^0.4.0",
         "@tailwindcss/vite": "^4.3.3",
         "esbuild": "^0.28.2",
+        "fontkit": "^2.0.4",
         "laravel-vite-plugin": "^3.2.0",
         "playwright": "^1.62.1",
         "tailwindcss": "^4.3.3",