feat(layout): login, uygulama kabuğu, alt menü, hızlı ekle ve dashboard

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

src/components/layout/app-header.tsx

@@ -0,0 +1,31 @@
+import { SidebarTrigger } from "@/components/ui/sidebar";
+import type { SessionUser } from "@/features/auth/types";
+import type { HouseholdSummary } from "@/features/households/types";
+import { tr } from "@/i18n/tr";
+import { HouseholdSwitcher } from "./household-switcher";
+import { QuickAddButton } from "./quick-add";
+import { ThemeToggle } from "./theme-toggle";
+import { UserMenu } from "./user-menu";
+
+/** Üst bar: menü düğmesi (masaüstü), hane seçici, hızlı ekle, tema ve kullanıcı menüsü. */
+export function AppHeader({
+  user,
+  households,
+  version,
+}: {
+  user: SessionUser;
+  households: HouseholdSummary[];
+  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} />
+      <div className="ml-auto flex items-center gap-1">
+        <QuickAddButton className="hidden md:inline-flex" />
+        <ThemeToggle />
+        <UserMenu user={user} version={version} />
+      </div>
+    </header>
+  );
+}