style: Apply Prettier formatting with 4-space indentation

Applied consistent code formatting across the project using Prettier, now configured to use 4-space indentation instead of tabs.

vitest.config.ts

@@ -1,8 +1,8 @@
 import { defineConfig } from 'vitest/config';
 
 export default defineConfig({
-	test: {
-		include: ['src/**/*.{test,spec}.ts'],
-		exclude: ['node_modules', 'tests']
-	}
+    test: {
+        include: ['src/**/*.{test,spec}.ts'],
+        exclude: ['node_modules', 'tests']
+    }
 });