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/electron/preload/index.cjs

@@ -0,0 +1,17 @@
+const { contextBridge, ipcRenderer } = require("electron")
+
+const electronAPI = {
+  onCliStatus: (callback) => {
+    ipcRenderer.on("cli:status", (_, data) => callback(data))
+    return () => ipcRenderer.removeAllListeners("cli:status")
+  },
+  onCliError: (callback) => {
+    ipcRenderer.on("cli:error", (_, data) => callback(data))
+    return () => ipcRenderer.removeAllListeners("cli:error")
+  },
+  getCliStatus: () => ipcRenderer.invoke("cli:getStatus"),
+  restartCli: () => ipcRenderer.invoke("cli:restart"),
+  openDialog: (options) => ipcRenderer.invoke("dialog:open", options),
+}
+
+contextBridge.exposeInMainWorld("electronAPI", electronAPI)