refactor: move from next js to vite and tanstack router

apps/ui/src/preload.ts

@@ -0,0 +1,42 @@
+/**
+ * Electron preload script (TypeScript)
+ *
+ * Only exposes native features (dialogs, shell) and server URL.
+ * All other operations go through HTTP API.
+ */
+
+import { contextBridge, ipcRenderer, OpenDialogOptions, SaveDialogOptions } from "electron";
+
+// Expose minimal API for native features
+contextBridge.exposeInMainWorld("electronAPI", {
+  // Platform info
+  platform: process.platform,
+  isElectron: true,
+
+  // Connection check
+  ping: (): Promise<string> => ipcRenderer.invoke("ping"),
+
+  // Get server URL for HTTP client
+  getServerUrl: (): Promise<string> => ipcRenderer.invoke("server:getUrl"),
+
+  // Native dialogs - better UX than prompt()
+  openDirectory: (): Promise<Electron.OpenDialogReturnValue> =>
+    ipcRenderer.invoke("dialog:openDirectory"),
+  openFile: (options?: OpenDialogOptions): Promise<Electron.OpenDialogReturnValue> =>
+    ipcRenderer.invoke("dialog:openFile", options),
+  saveFile: (options?: SaveDialogOptions): Promise<Electron.SaveDialogReturnValue> =>
+    ipcRenderer.invoke("dialog:saveFile", options),
+
+  // Shell operations
+  openExternalLink: (url: string): Promise<{ success: boolean; error?: string }> =>
+    ipcRenderer.invoke("shell:openExternal", url),
+  openPath: (filePath: string): Promise<{ success: boolean; error?: string }> =>
+    ipcRenderer.invoke("shell:openPath", filePath),
+
+  // App info
+  getPath: (name: string): Promise<string> => ipcRenderer.invoke("app:getPath", name),
+  getVersion: (): Promise<string> => ipcRenderer.invoke("app:getVersion"),
+  isPackaged: (): Promise<boolean> => ipcRenderer.invoke("app:isPackaged"),
+});
+
+console.log("[Preload] Electron API exposed (TypeScript)");