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>

app/(dashboard)/ajustes/data.ts

@@ -0,0 +1,70 @@
+import { desc, eq } from "drizzle-orm";
+import { apiTokens } from "@/db/schema";
+import { db, schema } from "@/lib/db";
+
+export interface UserPreferences {
+	disableMagnetlines: boolean;
+}
+
+export interface ApiToken {
+	id: string;
+	name: string;
+	tokenPrefix: string;
+	lastUsedAt: Date | null;
+	lastUsedIp: string | null;
+	createdAt: Date;
+	expiresAt: Date | null;
+	revokedAt: Date | null;
+}
+
+export async function fetchAuthProvider(userId: string): Promise<string> {
+	const userAccount = await db.query.account.findFirst({
+		where: eq(schema.account.userId, userId),
+	});
+	return userAccount?.providerId || "credential";
+}
+
+export async function fetchUserPreferences(
+	userId: string,
+): Promise<UserPreferences | null> {
+	const result = await db
+		.select({
+			disableMagnetlines: schema.userPreferences.disableMagnetlines,
+		})
+		.from(schema.userPreferences)
+		.where(eq(schema.userPreferences.userId, userId))
+		.limit(1);
+
+	return result[0] || null;
+}
+
+export async function fetchApiTokens(userId: string): Promise<ApiToken[]> {
+	return db
+		.select({
+			id: apiTokens.id,
+			name: apiTokens.name,
+			tokenPrefix: apiTokens.tokenPrefix,
+			lastUsedAt: apiTokens.lastUsedAt,
+			lastUsedIp: apiTokens.lastUsedIp,
+			createdAt: apiTokens.createdAt,
+			expiresAt: apiTokens.expiresAt,
+			revokedAt: apiTokens.revokedAt,
+		})
+		.from(apiTokens)
+		.where(eq(apiTokens.userId, userId))
+		.orderBy(desc(apiTokens.createdAt));
+}
+
+export async function fetchAjustesPageData(userId: string) {
+	const [authProvider, userPreferences, userApiTokens] = await Promise.all([
+		fetchAuthProvider(userId),
+		fetchUserPreferences(userId),
+		fetchApiTokens(userId),
+	]);
+
+	return {
+		authProvider,
+		userPreferences,
+		userApiTokens,
+	};
+}