Scaffold Aurora Dockside with electron-vite + React + TypeScript

Base template for a from-scratch DDEV desktop manager (Electron instead
of Tauri), built incrementally per the approved project plan.

src/preload/index.ts

@@ -0,0 +1,22 @@
+import { contextBridge } from 'electron'
+import { electronAPI } from '@electron-toolkit/preload'
+
+// Custom APIs for renderer
+const api = {}
+
+// Use `contextBridge` APIs to expose Electron APIs to
+// renderer only if context isolation is enabled, otherwise
+// just add to the DOM global.
+if (process.contextIsolated) {
+  try {
+    contextBridge.exposeInMainWorld('electron', electronAPI)
+    contextBridge.exposeInMainWorld('api', api)
+  } catch (error) {
+    console.error(error)
+  }
+} else {
+  // @ts-ignore (define in dts)
+  window.electron = electronAPI
+  // @ts-ignore (define in dts)
+  window.api = api
+}