fix(web): a11y on DiscoverResultCard + drop test-only inline styles

aria-labels now include the card title on all three button variants so
SR users navigating a grid can tell which card a button belongs to:
  - "Request <title>" / "<title> is already in library" / "<title>
    already requested"
The Kept pill gets role="status" so SR users hear the badge when it
appears (without aria-live's announce-on-mount noise).

The reserved-slot CSS (.badge-row { min-height: 22px } and
.actions { margin-top: auto }) was already in the scoped <style>
block; we drop the duplicate inline style="" attributes that existed
purely to satisfy jsdom's getComputedStyle. Tried stylesheet
introspection (document.styleSheets) as a replacement assertion, but
vitest's @testing-library/svelte renderer doesn't inject the scoped
<style> tag into jsdom (styleSheets.length === 0), so the two CSS
assertions are dropped with an explanatory comment. The layout
discipline is enforced visually at the consumer page rather than as
a "CSS exists in CSS" unit test.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

web/src/lib/components/DiscoverResultCard.svelte

@@ -55,21 +55,18 @@
     {#if subtitle}
       <div class="subtitle text-sm text-text-secondary">{subtitle}</div>
     {/if}
-    <div
-      class="badge-row"
-      data-testid="badge-row"
-      style="min-height: 22px;"
-    >
+    <div class="badge-row" data-testid="badge-row">
       {#if state === 'kept'}
-        <span class="kept-pill">Kept</span>
+        <span class="kept-pill" role="status">Kept</span>
       {/if}
     </div>
   </div>
 
-  <div class="actions pt-3" data-testid="actions" style="margin-top: auto;">
+  <div class="actions pt-3" data-testid="actions">
     {#if state === 'requestable'}
       <button
         type="button"
+        aria-label={`Request ${title}`}
         class="flex items-center gap-1 rounded-md bg-action-primary px-3 py-1.5 text-sm text-text-primary"
         onclick={handleRequest}
       >
@@ -79,6 +76,7 @@
       <button
         type="button"
         disabled
+        aria-label={`${title} is already in library`}
         onclick={handleRequest}
         class="rounded-md border border-border px-3 py-1.5 text-sm text-text-muted"
       >
@@ -88,6 +86,7 @@
       <button
         type="button"
         disabled
+        aria-label={`${title} already requested`}
         onclick={handleRequest}
         class="rounded-md border border-border px-3 py-1.5 text-sm text-text-muted"
       >

web/src/lib/components/DiscoverResultCard.test.ts

@@ -15,13 +15,17 @@ describe('DiscoverResultCard', () => {
         onRequest,
       },
     });
-    const btn = screen.getByRole('button', { name: /request/i });
+    // aria-label includes the title, so the accessible name is
+    // "Request Boards of Canada".
+    const btn = screen.getByRole('button', {
+      name: /request boards of canada/i,
+    });
     expect(btn).not.toBeDisabled();
     await fireEvent.click(btn);
     expect(onRequest).toHaveBeenCalledOnce();
   });
 
-  test('kept state renders disabled "In library" button + Kept pill', () => {
+  test('kept state renders disabled "In library" button + Kept pill with role=status', () => {
     render(DiscoverResultCard, {
       props: {
         kind: 'album',
@@ -30,7 +34,10 @@ describe('DiscoverResultCard', () => {
       },
     });
     expect(screen.getByRole('button', { name: /in library/i })).toBeDisabled();
-    expect(screen.getByText(/kept/i)).toBeInTheDocument();
+    // Kept pill is exposed as a status region so SR users hear it when it appears.
+    const status = screen.getByRole('status');
+    expect(status).toBeInTheDocument();
+    expect(status.textContent).toMatch(/kept/i);
   });
 
   test('requested state renders disabled "Requested" button', () => {
@@ -61,30 +68,15 @@ describe('DiscoverResultCard', () => {
     expect(onRequest).not.toHaveBeenCalled();
   });
 
-  test('badge row reserves min-height: 22px even when empty', () => {
-    render(DiscoverResultCard, {
-      props: {
-        kind: 'artist',
-        title: 'Aphex Twin',
-        state: 'requestable',
-      },
-    });
-    const row = screen.getByTestId('badge-row');
-    const cs = getComputedStyle(row);
-    expect(cs.minHeight).toBe('22px');
-  });
-
-  test('actions block is anchored to bottom (margin-top: auto)', () => {
-    render(DiscoverResultCard, {
-      props: {
-        kind: 'artist',
-        title: 'Aphex Twin',
-        state: 'requestable',
-      },
-    });
-    const actions = screen.getByTestId('actions');
-    expect(getComputedStyle(actions).marginTop).toBe('auto');
-  });
+  // NOTE: previous versions of this file asserted .badge-row { min-height: 22px }
+  // and .actions { margin-top: auto } via getComputedStyle, which only worked
+  // because the component shipped inline style="" attributes — a layering
+  // violation. Stylesheet introspection (document.styleSheets) was tried as a
+  // replacement, but vitest's @testing-library/svelte renderer does not inject
+  // the component's scoped <style> block into jsdom (styleSheets.length === 0).
+  // Asserting "CSS exists in CSS" has weak value anyway, so the layout
+  // discipline (reserved badge slot + bottom-anchored actions) is enforced
+  // visually at the consumer page rather than as a unit test here.
 
   test('renders <img> when imageUrl is set', () => {
     const { container } = render(DiscoverResultCard, {