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/calculadora/calculator-keypad.tsx

@@ -1,29 +1,29 @@
 import { Button } from "@/components/ui/button";
+import type { CalculatorButtonConfig } from "@/hooks/use-calculator-state";
 import { cn } from "@/lib/utils/ui";
-import { type CalculatorButtonConfig } from "@/hooks/use-calculator-state";
 
 type CalculatorKeypadProps = {
-  buttons: CalculatorButtonConfig[][];
+	buttons: CalculatorButtonConfig[][];
 };
 
 export function CalculatorKeypad({ buttons }: CalculatorKeypadProps) {
-  return (
-    <div className="grid grid-cols-4 gap-2">
-      {buttons.flat().map((btn, index) => (
-        <Button
-          key={`${btn.label}-${index}`}
-          type="button"
-          variant={btn.variant ?? "outline"}
-          onClick={btn.onClick}
-          className={cn(
-            "h-12 text-base font-semibold",
-            btn.colSpan === 2 && "col-span-2",
-            btn.colSpan === 3 && "col-span-3",
-          )}
-        >
-          {btn.label}
-        </Button>
-      ))}
-    </div>
-  );
+	return (
+		<div className="grid grid-cols-4 gap-2">
+			{buttons.flat().map((btn, index) => (
+				<Button
+					key={`${btn.label}-${index}`}
+					type="button"
+					variant={btn.variant ?? "outline"}
+					onClick={btn.onClick}
+					className={cn(
+						"h-12 text-base font-semibold",
+						btn.colSpan === 2 && "col-span-2",
+						btn.colSpan === 3 && "col-span-3",
+					)}
+				>
+					{btn.label}
+				</Button>
+			))}
+		</div>
+	);
 }