chore: Update package dependencies and configuration for Electron adapter

- Removed package manager and engines from package.json.
- Updated pnpm-lock.yaml to reflect new versions of dependencies.
- Modified pnpm-workspace.yaml to include only built dependencies for Electron.
- Adjusted electron-builder.yaml to exclude unnecessary files and added output directory.
- Deleted obsolete electron.vite.config.ts file.
- Updated main entry point in examples/electron/package.json to use CommonJS format.
- Refactored scripts in examples/electron/package.json for better development experience.
- Enhanced error handling and logging in game logic within examples/electron/src/routes/sverdle/+page.server.ts.
- Updated adapter-electron to support new protocol handling and build processes.

packages/adapter-electron/index.d.ts

@@ -1,10 +1,49 @@
-import { Adapter } from '@sveltejs/kit';
-import type { AdapterOptions as NodeAdapterOptions } from '@sveltejs/adapter-node';
-import './ambient.js';
+import type { Adapter } from '@sveltejs/kit';
 
-interface AdapterOptions {
+export interface AdapterOptions {
+  /**
+   * Output directory for the Electron app
+   * @default 'out'
+   */
   out?: string;
-  options?: NodeAdapterOptions;
+  
+  /**
+   * Directory name for the protocol handler functions
+   * @default 'functions'
+   */
+  functions?: string;
+
+  /**
+   * Whether to precompress static assets
+   * @default false
+   */
+  precompress?: boolean;
 }
 
-export default function plugin(options?: AdapterOptions): Adapter;
+/**
+ * SvelteKit adapter for Electron desktop apps
+ * 
+ * This adapter:
+ * 1. Builds the SvelteKit app using the static adapter for client assets
+ * 2. Copies server files for SSR support
+ * 3. Copies prerendered pages
+ * 4. Provides a native Electron protocol handler that bypasses HTTP servers
+ * 5. Outputs a complete Electron app structure ready for packaging
+ */
+declare function adapter(options?: AdapterOptions): Adapter;
+
+export default adapter;
+
+export interface ElectronPluginOptions {
+  mainEntry?: string;
+  preloadEntry?: string;
+  mainOut?: string;
+  preloadOut?: string;
+  externalMain?: string[];
+  externalPreload?: string[];
+}
+
+/**
+ * Vite plugin to build Electron main/preload files
+ */
+export declare function electronPlugin(options?: ElectronPluginOptions): any;