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/cartoes/constants.ts

@@ -3,5 +3,5 @@ export const DEFAULT_CARD_BRANDS = ["Visa", "Mastercard", "Elo"] as const;
 export const DEFAULT_CARD_STATUS = ["Ativo", "Inativo"] as const;
 
 export const DAYS_IN_MONTH = Array.from({ length: 31 }, (_, index) =>
-  String(index + 1).padStart(2, "0")
+	String(index + 1).padStart(2, "0"),
 );