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/widget-empty-state.tsx

@@ -1,30 +1,30 @@
 import type { ReactNode } from "react";
 import {
-  Empty,
-  EmptyDescription,
-  EmptyHeader,
-  EmptyMedia,
-  EmptyTitle,
+	Empty,
+	EmptyDescription,
+	EmptyHeader,
+	EmptyMedia,
+	EmptyTitle,
 } from "@/components/ui/empty";
 
 type WidgetEmptyStateProps = {
-  icon?: ReactNode;
-  title: string;
-  description?: string;
+	icon?: ReactNode;
+	title: string;
+	description?: string;
 };
 
 export function WidgetEmptyState({
-  icon,
-  title,
-  description,
+	icon,
+	title,
+	description,
 }: WidgetEmptyStateProps) {
-  return (
-    <Empty>
-      <EmptyHeader>
-        <EmptyMedia>{icon}</EmptyMedia>
-        <EmptyTitle>{title}</EmptyTitle>
-        <EmptyDescription>{description}</EmptyDescription>
-      </EmptyHeader>
-    </Empty>
-  );
+	return (
+		<Empty>
+			<EmptyHeader>
+				<EmptyMedia>{icon}</EmptyMedia>
+				<EmptyTitle>{title}</EmptyTitle>
+				<EmptyDescription>{description}</EmptyDescription>
+			</EmptyHeader>
+		</Empty>
+	);
 }