refactor: migrate from ESLint to Biome and extract SQL queries to data.ts

- Replace ESLint with Biome for linting and formatting
- Configure Biome with tabs, double quotes, and organized imports
- Move all SQL/Drizzle queries from page.tsx files to data.ts files
- Create new data.ts files for: ajustes, dashboard, relatorios/categorias
- Update existing data.ts files: extrato, fatura (add lancamentos queries)
- Remove all drizzle-orm imports from page.tsx files
- Update README.md with new tooling info

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

components/skeletons/dashboard-grid-skeleton.tsx

@@ -6,17 +6,17 @@ import { WidgetSkeleton } from "./widget-skeleton";
  * Mantém a mesma estrutura de layout do dashboard real
  */
 export function DashboardGridSkeleton() {
-  return (
-    <div className="@container/main space-y-4">
-      {/* Section Cards no topo */}
-      <SectionCardsSkeleton />
+	return (
+		<div className="@container/main space-y-4">
+			{/* Section Cards no topo */}
+			<SectionCardsSkeleton />
 
-      {/* Grid de widgets */}
-      <div className="grid grid-cols-1 gap-4 @3xl/main:grid-cols-2 @7xl/main:grid-cols-3">
-        {Array.from({ length: 12 }).map((_, i) => (
-          <WidgetSkeleton key={i} />
-        ))}
-      </div>
-    </div>
-  );
+			{/* Grid de widgets */}
+			<div className="grid grid-cols-1 gap-4 @3xl/main:grid-cols-2 @7xl/main:grid-cols-3">
+				{Array.from({ length: 12 }).map((_, i) => (
+					<WidgetSkeleton key={i} />
+				))}
+			</div>
+		</div>
+	);
 }