feat(ui): dashboard ana grafiği ve rapor sayfaları

- dashboard: periyot seçici ve kümülatif/dönemsel görünüm, tablo; günlük plan kartı sadeleşti
- /raporlar özet ve kategori, trend, kişi/hesap, bütçe sayfaları; ay seçici ve CSV indirme

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

src/app/(app)/dashboard/page.tsx

@@ -3,6 +3,8 @@ import Link from "next/link";
 import { Suspense } from "react";
 import { PageHeader } from "@/components/page-header";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
+import { Skeleton } from "@/components/ui/skeleton";
+import { OverviewCard } from "@/features/dashboard/components/overview-card";
 import { SummaryCardsSkeleton } from "@/features/dashboard/components/summary-cards-skeleton";
 import { DailyPlanCard } from "@/features/budgets/components/daily-plan-card";
 import { BudgetWarningBanner } from "@/features/budgets/components/warning-banner";
@@ -84,7 +86,7 @@ async function SummaryCards({ userId, householdId }: { userId: string; household
   );
 }
 
-export default async function DashboardPage() {
+export default async function DashboardPage({ searchParams }: PageProps<"/dashboard">) {
   const { user, household } = await requireActiveHousehold("viewer");
   return (
     <>
@@ -104,6 +106,9 @@ export default async function DashboardPage() {
       <Suspense fallback={<SummaryCardsSkeleton />}>
         <SummaryCards userId={user.id} householdId={household.id} />
       </Suspense>
+      <Suspense fallback={<Skeleton className="h-96 rounded-xl" />}>
+        <OverviewCard userId={user.id} householdId={household.id} searchParams={searchParams} />
+      </Suspense>
       <Suspense fallback={null}>
         <DailyPlanCard userId={user.id} householdId={household.id} />
       </Suspense>