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/functions/setupHandler.d.ts

@@ -0,0 +1,21 @@
+import type { ProtocolRequest, GlobalRequest } from "electron";
+import type { BrowserWindow, Session } from "electron/main";
+import { IncomingMessage } from 'node:http';
+
+/**
+ * Sets up the native Electron protocol handler for SvelteKit
+ * 
+ * This function:
+ * 1. Initializes the SvelteKit server
+ * 2. Registers the 'app' protocol scheme as privileged
+ * 3. Handles all app:// requests for static assets, prerendered pages, and SSR
+ * 
+ * @returns Promise that resolves when the protocol handler is set up
+ */
+export function setupHandler(mainWindow: BrowserWindow): Promise<() => void>; 
+
+export function registerAppScheme(): void;
+
+export function getPreloadPath(): string;
+
+export function createRequest(request: GlobalRequest, session: Session): Promise<IncomingMessage>;