fix: restore complete source code and fix launchers

- Copy complete source code packages from original CodeNomad project
- Add root package.json with npm workspace configuration
- Include electron-app, server, ui, tauri-app, and opencode-config packages
- Fix Launch-Windows.bat and Launch-Dev-Windows.bat to work with correct npm scripts
- Fix Launch-Unix.sh to work with correct npm scripts
- Launchers now correctly call npm run dev:electron which launches Electron app

packages/electron-app/README.md

@@ -0,0 +1,40 @@
+# CodeNomad App
+
+This package contains the native desktop application shell for CodeNomad, built with [Electron](https://www.electronjs.org/).
+
+## Overview
+
+The Electron app wraps the CodeNomad UI and Server into a standalone executable. It provides deeper system integration, such as:
+- Native window management
+- Global keyboard shortcuts
+- Application menu integration
+
+## Development
+
+To run the Electron app in development mode:
+
+```bash
+npm run dev
+```
+
+This will start the renderer (UI) and the main process with hot reloading.
+
+## Building
+
+To build the application for your current platform:
+
+```bash
+npm run build
+```
+
+To build for specific platforms (requires appropriate build tools):
+
+- **macOS**: `npm run build:mac`
+- **Windows**: `npm run build:win`
+- **Linux**: `npm run build:linux`
+
+## Structure
+
+- `electron/main`: Main process code (window creation, IPC).
+- `electron/preload`: Preload scripts for secure bridge between main and renderer.
+- `electron/resources`: Static assets like icons.