Improve accessibility in published docs

packages/gitbook/src/components/AIChat/AIChatButton.tsx

@@ -1,6 +1,6 @@
 'use client';
 import { useLanguage } from '@/intl/client';
-import { t } from '@/intl/translate';
+import { t, tString } from '@/intl/translate';
 import type { Assistant } from '../AI';
 import { useIsMobile } from '../hooks/useIsMobile';
 import { Button } from '../primitives';
@@ -38,6 +38,7 @@ export function AIChatButton(props: {
                     ) : null}
                 </div>
             }
+            aria-label={tString(language, 'ai_chat_ask', assistant.label)}
             onClick={() => assistant.open()}
         >
             {showLabel ? t(language, 'ask') : null}

packages/gitbook/src/components/Ads/Ad.tsx

@@ -132,7 +132,7 @@ function AdSponsoredLink(props: { spaceId: string }) {
     viaUrl.searchParams.set('utm_campaign', spaceId);
 
     return (
-        <p className={tcls('mt-2', 'mr-2', 'text-xs', 'text-right', 'text-tint-subtle')}>
+        <p className={tcls('mt-2', 'mr-2', 'text-xs', 'text-right', 'text-tint')}>
             <Link
                 target="_blank"
                 href={viaUrl.toString()}

packages/gitbook/src/components/PageActions/PageActions.tsx

@@ -435,6 +435,7 @@ function PageActionWrapper(props: {
                 size="xsmall"
                 variant="secondary"
                 label={label ?? shortLabel}
+                aria-label={shortLabel}
                 className="bg-tint-base"
                 onClick={onClick}
                 href={href}

packages/gitbook/src/components/SiteLayout/SiteLayout.tsx

@@ -108,7 +108,6 @@ export async function generateSiteLayoutViewport(context: GitBookSiteContext): P
                 : 'light dark', // 'system' → let browser decide based on OS preference
         width: 'device-width',
         initialScale: 1,
-        maximumScale: 1,
         viewportFit: 'cover',
     };
 }