feat(dashboard): personalized header + reuse dashboard-2 components

- /dashboard now a server component:
  * fetches active user + active tenant settings via getActiveContext()
  * redirects to /onboarding if user has no tenant yet
  * header shows companyName + 'Hoş geldiniz, {firstName}' + Turkish description
- Body reuses dashboard-2 components (Metrics/Sales/Revenue/Transactions/
  TopProducts/CustomerInsights/QuickActions). Mock data for now; will be
  swapped for live Appwrite queries as modules ship.
- New lib/appwrite/active-context.ts: getActiveContext() returns
  { user, tenantId, settings } for any server component / action.
- Made schema.ts SDK-agnostic by replacing Models.Document import with a
  local SystemRow type ({ $id, $createdAt, $updatedAt, $permissions, ... }).
  Avoids type clashes between appwrite (browser) and node-appwrite (server).

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

@@ -1,35 +1,51 @@
-import { ChartAreaInteractive } from "./components/chart-area-interactive"
-import { DataTable } from "./components/data-table"
-import { SectionCards } from "./components/section-cards"
+import { redirect } from "next/navigation";
 
-import data from "./data/data.json"
-import pastPerformanceData from "./data/past-performance-data.json"
-import keyPersonnelData from "./data/key-personnel-data.json"
-import focusDocumentsData from "./data/focus-documents-data.json"
+import { getActiveContext } from "@/lib/appwrite/active-context";
+import { CustomerInsights } from "../dashboard-2/components/customer-insights";
+import { MetricsOverview } from "../dashboard-2/components/metrics-overview";
+import { QuickActions } from "../dashboard-2/components/quick-actions";
+import { RecentTransactions } from "../dashboard-2/components/recent-transactions";
+import { RevenueBreakdown } from "../dashboard-2/components/revenue-breakdown";
+import { SalesChart } from "../dashboard-2/components/sales-chart";
+import { TopProducts } from "../dashboard-2/components/top-products";
+
+export default async function DashboardPage() {
+  const ctx = await getActiveContext();
+  if (!ctx) redirect("/onboarding");
+
+  const firstName = ctx.user.name?.split(" ")[0] ?? "";
+  const companyName = ctx.settings?.companyName ?? "Çalışma alanı";
 
-export default function Page() {
   return (
-    <>
-      {/* Page Title and Description */}
-      <div className="px-4 lg:px-6">
-        <div className="flex flex-col gap-2">
-          <h1 className="text-2xl font-bold tracking-tight">Dashboard</h1>
-          <p className="text-muted-foreground">Welcome to your admin dashboard</p>
+    <div className="flex-1 space-y-6 px-6 pt-0">
+      <div className="flex flex-col justify-between gap-4 md:flex-row md:items-center md:gap-6">
+        <div className="flex flex-col gap-1">
+          <p className="text-muted-foreground text-sm">{companyName}</p>
+          <h1 className="text-2xl font-bold tracking-tight">
+            {firstName ? `Hoş geldiniz, ${firstName}` : "Genel bakış"}
+          </h1>
+          <p className="text-muted-foreground text-sm">
+            İşletmenizin temel metriklerini ve son hareketleri buradan takip edin.
+          </p>
         </div>
+        <QuickActions />
       </div>
 
-      <div className="@container/main px-4 lg:px-6 space-y-6">
-        <SectionCards />
-        <ChartAreaInteractive />
+      <div className="@container/main space-y-6">
+        <MetricsOverview />
+
+        <div className="grid grid-cols-1 gap-6 @5xl:grid-cols-2">
+          <SalesChart />
+          <RevenueBreakdown />
+        </div>
+
+        <div className="grid grid-cols-1 gap-6 @5xl:grid-cols-2">
+          <RecentTransactions />
+          <TopProducts />
+        </div>
+
+        <CustomerInsights />
       </div>
-      <div className="@container/main">
-        <DataTable
-          data={data}
-          pastPerformanceData={pastPerformanceData}
-          keyPersonnelData={keyPersonnelData}
-          focusDocumentsData={focusDocumentsData}
-        />
-      </div>
-    </>
-  )
+    </div>
+  );
 }