feat: Enhance UserScript structure and functionality

- Updated package.json to include new scripts for development, production builds, linting, formatting, and cleaning.
- Added ESLint and Prettier for code quality and formatting.
- Refactored main application class to extend EventEmitter and manage modules.
- Introduced ExampleModule to demonstrate module structure and functionality.
- Created utility classes for DOM manipulation, event handling, and persistent storage.
- Added TypeScript definitions for UserScript environment.
- Improved TypeScript configuration with stricter checks and path aliases.
- Updated Vite configuration to handle development and production builds more effectively.
- Enhanced user script header generation to support environment-specific configurations.

vite.config.ts

@@ -1,21 +1,33 @@
-import { defineConfig } from "vite";
 import { resolve } from "path";
+import { defineConfig } from "vite";
 import tsconfigPaths from "vite-tsconfig-paths";
 import pkgjsn from "./package.json";
 
-export default defineConfig({
-  build: {
-    rollupOptions: {
-      input: resolve(__dirname, "src/index.ts"),
-      output: {
-        entryFileNames: `${pkgjsn.name}.user.js`,
-        dir: resolve(__dirname, "dist"),
+export default defineConfig(({ mode }) => {
+  const isDev = mode === 'development';
+
+  return {
+    build: {
+      rollupOptions: {
+        input: resolve(__dirname, "src/index.ts"),
+        output: {
+          entryFileNames: `${pkgjsn.name}${isDev ? '.dev' : ''}.user.js`,
+          dir: resolve(__dirname, "dist"),
+        },
+      },
+      sourcemap: isDev ? "inline" : false,
+      minify: isDev ? false : 'terser',
+    },
+    plugins: [tsconfigPaths()],
+    resolve: {
+      extensions: [".tsx", ".ts", ".js"],
+      alias: {
+        '@': resolve(__dirname, 'src'),
       },
     },
-    sourcemap: "inline", // Equivalent to 'inline-source-map'
-  },
-  plugins: [tsconfigPaths()],
-  resolve: {
-    extensions: [".tsx", ".ts", ".js"],
-  },
+    define: {
+      __DEV__: isDev,
+      __VERSION__: JSON.stringify(pkgjsn.version),
+    },
+  };
 });