feat: adição de novos ícones SVG e configuração do ambiente

- Adicionados ícones SVG para ChatGPT, Claude, Gemini e OpenRouter
- Implementados ícones para modos claro e escuro do ChatGPT
- Criado script de inicialização para PostgreSQL com extensão pgcrypto
- Adicionado script de configuração de ambiente que faz backup do .env
- Configurado tsconfig.json para TypeScript com opções de compilação

app/(dashboard)/dashboard/page.tsx

@@ -0,0 +1,40 @@
+import { DashboardGrid } from "@/components/dashboard/dashboard-grid";
+import { DashboardWelcome } from "@/components/dashboard/dashboard-welcome";
+import { SectionCards } from "@/components/dashboard/section-cards";
+import MonthPicker from "@/components/month-picker/month-picker";
+import { fetchDashboardData } from "@/lib/dashboard/fetch-dashboard-data";
+import { getUser } from "@/lib/auth/server";
+import { parsePeriodParam } from "@/lib/utils/period";
+
+type PageSearchParams = Promise<Record<string, string | string[] | undefined>>;
+
+type PageProps = {
+  searchParams?: PageSearchParams;
+};
+
+const getSingleParam = (
+  params: Record<string, string | string[] | undefined> | undefined,
+  key: string
+) => {
+  const value = params?.[key];
+  if (!value) return null;
+  return Array.isArray(value) ? value[0] ?? null : value;
+};
+
+export default async function Page({ searchParams }: PageProps) {
+  const user = await getUser();
+  const resolvedSearchParams = searchParams ? await searchParams : undefined;
+  const periodoParam = getSingleParam(resolvedSearchParams, "periodo");
+  const { period: selectedPeriod } = parsePeriodParam(periodoParam);
+
+  const data = await fetchDashboardData(user.id, selectedPeriod);
+
+  return (
+    <main className="flex flex-col gap-4 px-4">
+      <DashboardWelcome name={user.name} />
+      <MonthPicker />
+      <SectionCards metrics={data.metrics} />
+      <DashboardGrid data={data} period={selectedPeriod} />
+    </main>
+  );
+}