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/page-description.tsx

@@ -1,21 +1,21 @@
 export default function PageDescription({
-  title,
-  subtitle,
-  icon,
+	title,
+	subtitle,
+	icon,
 }: {
-  title?: string;
-  subtitle?: string;
-  icon?: React.ReactNode;
+	title?: string;
+	subtitle?: string;
+	icon?: React.ReactNode;
 }) {
-  return (
-    <div>
-      <h1 className="text-2xl font-semibold flex items-center gap-1">
-        <span className="text-primary">{icon}</span>
-        {title}
-      </h1>
-      <h2 className="text-sm max-w-2xl text-muted-foreground leading-relaxed mt-2">
-        {subtitle}
-      </h2>
-    </div>
-  );
+	return (
+		<div>
+			<h1 className="text-2xl font-semibold flex items-center gap-1">
+				<span className="text-primary">{icon}</span>
+				{title}
+			</h1>
+			<h2 className="text-sm max-w-2xl text-muted-foreground leading-relaxed mt-2">
+				{subtitle}
+			</h2>
+		</div>
+	);
 }