Cut duplicated and speculative code across the package

An over-engineering audit of the whole tree, applied in five reviewed
batches. Behaviour stays the same except where UPGRADE.md says otherwise.

PHP: the showcase and error-page stylesheets are prebuilt into
resources/dist by bin/stylesheets.mjs, through Vite's own postcss-import
(first occurrence kept, the order an application's build gives), instead
of Stylesheets::bundle() inlining imports on every request; only the
import walk DesignGuard needs stays. SchemeStylesheet::withProfiles()
replaces three copies of the scheme-plus-profiles loop, material:scheme
leaves spec and contrast checks to the node script that already made
them, and the error page's scheme cache, the hashed view namespace, the
translations path with no lang/ folder and DesignGuard's 1.x-name hints
are gone.

JS: the androidx shape port progress.js and both bin scripts each carried
lives once in resources/js/shapes.js (the generated SVGs are unchanged);
util.js holds ringIndex(), ms(), reopenGuard() and remember(), which
were written out several times; listeners are released through
AbortController; tooltip.js's hoverPopover() serves the rich tooltip too.

CSS: every rule for an element inside the navigation rail queries
`--md-navigation-rail-value` instead of repeating the seven collapsed
conditions under five media branches; badge, alert, progress, slider and
button read one non-inheriting colour-role table (components/color.css);
the dialog chrome, the submenu's popover chrome, the chip's state layer
and touch target, and the visually-hidden inputs use the shared rules
they copied; foundation/tokens.css is folded into foundation.css.

Views: Support\Field and Support\Link replace the error-key, bound-value
and link-attribute blocks copied into the fields and link components;
the timepicker period group, the menu filter and the showcase head are
partials; the datepicker's steppers and entry fields are loops; component
docblocks no longer restate SKILL.md.

Tests and tooling: one dataset-driven ComponentStylesheetsTest replaces
four per-group files, DesignGuardTest and the layout-component tests use
datasets, browser tests share one ready() helper, CSS parsing lives in
ComponentStylesheet alone. docs/audits and the finding IDs citing it are
removed, as are pestphp/pest-plugin-laravel, the unused composer scripts
and check:font; the lint job runs in the feature job, which now installs
node packages so the prebuilt-stylesheet staleness test runs in CI.

Feature suite 1177 passed, Chrome browser suite 299 passed.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

tests/Feature/FontTest.php

@@ -4,17 +4,19 @@ use Illuminate\Support\Facades\Process;
 
 /**
  * PHP cannot open a woff2 without the Brotli extension, so the axes are read by Node:
- * bin/check-font.mjs (fontkit) prints them as JSON. Without Node the test is skipped, the
+ * bin/check-font.mjs (fontkit) prints them as JSON. Without Node every test here is skipped, the
  * way `material:scheme` reports the same missing binary instead of guessing.
  */
-it('keeps the variable axes the typescale depends on in the packaged font', function () {
-    $node = config('livewire-material.node', 'node');
+beforeEach(function () {
+    $this->node = config('livewire-material.node', 'node');
 
-    if (Process::run([$node, '--version'])->failed()) {
-        $this->markTestSkipped("Node ({$node}) could not run; `npm run check:font` reads the woff2's axes.");
+    if (Process::run([$this->node, '--version'])->failed() || ! is_dir(__DIR__.'/../../node_modules/fontkit')) {
+        $this->markTestSkipped("Node ({$this->node}) or fontkit is missing; bin/check-font.mjs reads the woff2's axes.");
     }
+});
 
-    $result = Process::run([$node, __DIR__.'/../../bin/check-font.mjs']);
+it('keeps the variable axes the typescale depends on in the packaged font', function () {
+    $result = Process::run([$this->node, __DIR__.'/../../bin/check-font.mjs']);
 
     expect($result->successful())->toBeTrue($result->errorOutput());
 
@@ -27,14 +29,8 @@ it('keeps the variable axes the typescale depends on in the packaged font', func
         ->and($font['axes']['ROND'])->toMatchArray(['min' => 0, 'max' => 100]);
 });
 
-it('fails loudly when the font has no variable axes at all', function () {
-    $node = config('livewire-material.node', 'node');
-
-    if (Process::run([$node, '--version'])->failed()) {
-        $this->markTestSkipped("Node ({$node}) could not run; `npm run check:font` reads the woff2's axes.");
-    }
-
-    $result = Process::run([$node, __DIR__.'/../../bin/check-font.mjs', __DIR__.'/../Fixtures/no-such-font.woff2']);
+it('fails loudly when the font file cannot be opened', function () {
+    $result = Process::run([$this->node, __DIR__.'/../../bin/check-font.mjs', __DIR__.'/../Fixtures/no-such-font.woff2']);
 
     expect($result->failed())->toBeTrue()
         ->and($result->errorOutput())->toContain('no-such-font.woff2');