feat: implement category history widget and loading state for category history page

app/(dashboard)/categorias/historico/loading.tsx

@@ -0,0 +1,33 @@
+import { Skeleton } from "@/components/ui/skeleton";
+import { Card, CardContent } from "@/components/ui/card";
+
+export default function Loading() {
+  return (
+    <main className="flex flex-col gap-6 px-6">
+      <Card className="h-auto">
+        <CardContent className="space-y-2.5">
+          <div className="space-y-2">
+            {/* Selected categories and counter */}
+            <div className="flex items-start justify-between gap-4">
+              <div className="flex flex-wrap gap-2">
+                <Skeleton className="h-8 w-32 rounded-md" />
+                <Skeleton className="h-8 w-40 rounded-md" />
+                <Skeleton className="h-8 w-36 rounded-md" />
+              </div>
+              <div className="flex items-center gap-2 shrink-0 pt-1.5">
+                <Skeleton className="h-4 w-24" />
+                <Skeleton className="h-6 w-14" />
+              </div>
+            </div>
+
+            {/* Category selector button */}
+            <Skeleton className="h-9 w-full rounded-md" />
+          </div>
+
+          {/* Chart */}
+          <Skeleton className="h-[450px] w-full rounded-lg" />
+        </CardContent>
+      </Card>
+    </main>
+  );
+}

app/(dashboard)/categorias/historico/page.tsx

@@ -0,0 +1,21 @@
+import { CategoryHistoryWidget } from "@/components/dashboard/category-history-widget";
+import { getUser } from "@/lib/auth/server";
+import { fetchCategoryHistory } from "@/lib/dashboard/categories/category-history";
+import { getCurrentPeriod } from "@/lib/utils/period";
+
+export default async function HistoricoCategoriasPage() {
+  const user = await getUser();
+  const currentPeriod = getCurrentPeriod();
+
+  const data = await fetchCategoryHistory(user.id, currentPeriod);
+
+  return (
+    <main className="flex flex-col gap-6">
+      <p className="text-muted-foreground">
+        Acompanhe o histórico de desempenho das suas categorias ao longo de 9
+        meses.
+      </p>
+      <CategoryHistoryWidget data={data} />
+    </main>
+  );
+}