integration: add route metadata, JSON-LD and harden the public shell

Ship prerendered SEO, crawl files and palette/map a11y so every locale route is indexable, honest and keyboard-usable without inventing claims.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/app/app.ts

@@ -7,17 +7,27 @@ import { LOCALE_HTML_LANG, otherLocale } from './core/i18n/locale';
 import { LocaleService } from './core/i18n/locale.service';
 import { NavigationService } from './core/navigation/navigation.service';
 import { CommandPalette } from './shared/command-palette/command-palette';
+import { CommandPaletteTrigger } from './shared/command-palette/command-palette-trigger/command-palette-trigger';
+import { CommandPaletteService } from './shared/command-palette/command-palette.service';
 
 @Component({
   selector: 'app-root',
   changeDetection: ChangeDetectionStrategy.OnPush,
-  imports: [RouterOutlet, RouterLink, RouterLinkActive, DotBackground, CommandPalette],
+  imports: [
+    RouterOutlet,
+    RouterLink,
+    RouterLinkActive,
+    DotBackground,
+    CommandPalette,
+    CommandPaletteTrigger,
+  ],
   templateUrl: './app.html',
   styleUrl: './app.scss',
 })
 export class App {
   protected readonly navigation = inject(NavigationService);
   protected readonly localeService = inject(LocaleService);
+  protected readonly palette = inject(CommandPaletteService);
   protected readonly siteConfig = SITE_CONFIG;
   protected readonly navOpen = signal(true);