migrate from eslint & prettier to biome

tsdown.config.ts

@@ -1,19 +1,19 @@
-import { defineConfig } from "tsdown";
-import packageJson from "./package.json" with { type: "json" };
+import { defineConfig } from 'tsdown'
+import packageJson from './package.json' with { type: 'json' }
 
 export default defineConfig((options) => {
-  const dev = !!options.watch;
-  return {
-    entry: ["src/**/*.(ts|js)"],
-    format: ["esm"],
-    target: "node24",
-    unbundle: true,
-    dts: true,
-    sourcemap: true,
-    clean: true,
-    splitting: false,
-    minify: !dev,
-    external: [...Object.keys(packageJson.peerDependencies), "dotenv"],
-    tsconfig: "tsconfig.json",
-  };
-});
+	const dev = !!options.watch
+	return {
+		entry: ['src/**/*.(ts|js)'],
+		format: ['esm'],
+		target: 'node24',
+		unbundle: true,
+		dts: true,
+		sourcemap: true,
+		clean: true,
+		splitting: false,
+		minify: !dev,
+		external: [...Object.keys(packageJson.peerDependencies), 'dotenv'],
+		tsconfig: 'tsconfig.json',
+	}
+})