feat(households): hane seçici, ayarlar, admin hane yönetimi ve hane-yok sayfası

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/components/layout/app-header.tsx

@@ -11,18 +11,23 @@ import { UserMenu } from "./user-menu";
 export function AppHeader({
   user,
   households,
+  activeHouseholdId,
+  canWrite,
   version,
 }: {
   user: SessionUser;
   households: HouseholdSummary[];
+  activeHouseholdId: string | undefined;
+  /** Aktif hanede en az "member" mi? (İzleyici veri giremez.) */
+  canWrite: boolean;
   version: string;
 }) {
   return (
     <header className="sticky top-0 z-30 flex h-14 items-center gap-2 border-b bg-background/95 px-3 backdrop-blur supports-backdrop-filter:bg-background/80 md:px-4">
       <SidebarTrigger className="hidden md:inline-flex" aria-label={tr.nav.toggleSidebar} />
-      <HouseholdSwitcher households={households} />
+      <HouseholdSwitcher households={households} activeId={activeHouseholdId} />
       <div className="ml-auto flex items-center gap-1">
-        <QuickAddButton className="hidden md:inline-flex" />
+        {canWrite ? <QuickAddButton className="hidden md:inline-flex" /> : null}
         <ThemeToggle />
         <UserMenu user={user} version={version} />
       </div>