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>

resources/js/search.js

@@ -41,15 +41,6 @@ const RETURN_GUARD_MS = 250
 // counting, so the live region speaks once.
 const SETTLE_MS = 120
 
-/** The longest `transition-duration` + `transition-delay` on an element, in ms: zero under reduced motion. */
-const longestTransition = (element) => {
-    const style = getComputedStyle(element)
-    const ms = (value) => parseFloat(value) * (value.trim().endsWith('ms') ? 1 : 1000)
-    const delays = style.transitionDelay.split(',').map(ms)
-
-    return Math.max(0, ...style.transitionDuration.split(',').map((duration, index) => ms(duration) + (delays[index % delays.length] || 0)))
-}
-
 document.addEventListener('alpine:init', () => {
     window.Alpine.data('materialSearch', (docked = false, announce = {}, trigger = 'bar') => ({
         open: false,
@@ -162,9 +153,9 @@ document.addEventListener('alpine:init', () => {
         },
 
         /**
-         * Keeps the full-screen layout for the length of the view's exit. The closed state's
-         * durations are read a frame on, once they are the ones computed; reopening, which counts
-         * `leavings` up, lets a pending end go by.
+         * Keeps the full-screen layout for the length of the view's exit: until the animations the
+         * closed state starts, a frame on, have finished (at once when none run); reopening, which
+         * counts `leavings` up, lets a pending end go by.
          */
         hold() {
             const leaving = ++this.leavings
@@ -172,13 +163,13 @@ document.addEventListener('alpine:init', () => {
             this.leaving = true
 
             requestAnimationFrame(() => {
-                const duration = this.$refs.view ? longestTransition(this.$refs.view) : 0
+                const animations = this.$refs.view?.getAnimations() ?? []
 
-                setTimeout(() => {
+                Promise.allSettled(animations.map((animation) => animation.finished)).then(() => {
                     if (leaving === this.leavings) {
                         this.leaving = false
                     }
-                }, duration)
+                })
             })
         },