feat: add 'Manager' link to Header component

- Introduced a new navigation link for the 'Manager' page in the Header component, improving user access to management features.

src/app/weekly-manager/WeeklyManagerPageClient.tsx

@@ -0,0 +1,32 @@
+'use client';
+
+import { TasksProvider } from '@/contexts/TasksContext';
+import { UserPreferencesProvider } from '@/contexts/UserPreferencesContext';
+import ManagerWeeklySummary from '@/components/dashboard/ManagerWeeklySummary';
+import { ManagerSummary } from '@/services/manager-summary';
+import { Task, Tag, UserPreferences } from '@/lib/types';
+
+interface WeeklyManagerPageClientProps {
+  initialSummary: ManagerSummary;
+  initialTasks: Task[];
+  initialTags: (Tag & { usage: number })[];
+  initialPreferences: UserPreferences;
+}
+
+export function WeeklyManagerPageClient({ 
+  initialSummary, 
+  initialTasks, 
+  initialTags, 
+  initialPreferences 
+}: WeeklyManagerPageClientProps) {
+  return (
+    <UserPreferencesProvider initialPreferences={initialPreferences}>
+      <TasksProvider 
+        initialTasks={initialTasks}
+        initialTags={initialTags}
+      >
+        <ManagerWeeklySummary initialSummary={initialSummary} />
+      </TasksProvider>
+    </UserPreferencesProvider>
+  );
+}