feat: add Check for Updates to tray menu

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/native/tray.ts

@@ -5,6 +5,7 @@ import macOsTrayIconAsset from "../../assets/desktop/iconTemplate.png?asset";
 import { version } from "../../package.json";
 
 import { mainWindow, quitApp } from "./window";
+import { checkForUpdates } from "./updater";
 
 // internal tray state
 let tray: Tray = null;
@@ -52,6 +53,11 @@ export function updateTrayMenu() {
           },
         ]),
       },
+      {
+        label: "Check for Updates",
+        type: "normal",
+        click: () => checkForUpdates(),
+      },
       { type: "separator" },
       {
         label: mainWindow.isVisible() ? "Hide App" : "Show App",

src/native/updater.ts

@@ -1,4 +1,4 @@
-import { Notification, app } from "electron";
+import { Notification, app, ipcMain } from "electron";
 import { exec } from "child_process";
 import { createWriteStream, mkdirSync } from "fs";
 import { dirname, join } from "path";
@@ -6,6 +6,8 @@ import { tmpdir } from "os";
 import { pipeline } from "stream/promises";
 import { Readable } from "stream";
 
+ipcMain.handle("checkForUpdates", () => checkForUpdates());
+
 const RELEASES_URL =
   "https://git.mithraic.cloud/api/v1/repos/ad3laid3/sanctum/releases/latest";