Mise en ligne de la version 0.2.0

web/src/app/services/global-search.service.ts

@@ -0,0 +1,16 @@
+import { Injectable } from '@angular/core';
+import { BehaviorSubject } from 'rxjs';
+
+/**
+ * État global de la command palette (modale de recherche).
+ * Ouverte via bouton sidebar, raccourci Ctrl+K / Cmd+K, ou API programmatique.
+ */
+@Injectable({ providedIn: 'root' })
+export class GlobalSearchService {
+  private readonly _open$ = new BehaviorSubject<boolean>(false);
+  readonly open$ = this._open$.asObservable();
+
+  open(): void { this._open$.next(true); }
+  close(): void { this._open$.next(false); }
+  toggle(): void { this._open$.next(!this._open$.value); }
+}