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/ui/separator.tsx

@@ -1,28 +1,28 @@
-"use client"
+"use client";
 
-import * as React from "react"
-import * as SeparatorPrimitive from "@radix-ui/react-separator"
+import * as SeparatorPrimitive from "@radix-ui/react-separator";
+import type * as React from "react";
 
-import { cn } from "@/lib/utils"
+import { cn } from "@/lib/utils";
 
 function Separator({
-  className,
-  orientation = "horizontal",
-  decorative = true,
-  ...props
+	className,
+	orientation = "horizontal",
+	decorative = true,
+	...props
 }: React.ComponentProps<typeof SeparatorPrimitive.Root>) {
-  return (
-    <SeparatorPrimitive.Root
-      data-slot="separator"
-      decorative={decorative}
-      orientation={orientation}
-      className={cn(
-        "bg-border shrink-0 data-[orientation=horizontal]:h-px data-[orientation=horizontal]:w-full data-[orientation=vertical]:h-full data-[orientation=vertical]:w-px",
-        className
-      )}
-      {...props}
-    />
-  )
+	return (
+		<SeparatorPrimitive.Root
+			data-slot="separator"
+			decorative={decorative}
+			orientation={orientation}
+			className={cn(
+				"bg-border shrink-0 data-[orientation=horizontal]:h-px data-[orientation=horizontal]:w-full data-[orientation=vertical]:h-full data-[orientation=vertical]:w-px",
+				className,
+			)}
+			{...props}
+		/>
+	);
 }
 
-export { Separator }
+export { Separator };