fix: about view crash due to process.versions in sandboxed renderer

process.versions is not available in Electron's renderer with context
isolation enabled. Expose versions through the preload bridge instead.

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

Author: dbfx

src/main/preload.ts

@@ -35,8 +35,15 @@ contextBridge.exposeInMainWorld('mtrApi', {
     return () => { ipcRenderer.removeListener('loss:data', listener as (...args: unknown[]) => void); };
   },
 
-  // Auto-updater
+  // App info
   getVersion: () => ipcRenderer.invoke('app:version'),
+  getProcessVersions: () => ({
+    electron: process.versions.electron,
+    chrome: process.versions.chrome,
+    node: process.versions.node,
+  }),
+
+  // Auto-updater
   checkForUpdates: () => ipcRenderer.invoke('updater:check'),
   downloadUpdate: () => ipcRenderer.invoke('updater:download'),
   installUpdate: () => ipcRenderer.invoke('updater:install'),

src/renderer/components/AboutView.tsx

@@ -8,6 +8,8 @@ export default function AboutView() {
   const [updateStatus, setUpdateStatus] = useState<UpdateStatus>('idle');
   const [downloadPercent, setDownloadPercent] = useState(0);
 
+  const processVersions = window.mtrApi.getProcessVersions();
+
   useEffect(() => {
     window.mtrApi.getVersion().then(setVersion);
 
@@ -131,9 +133,9 @@ export default function AboutView() {
           <div className="flex flex-col gap-2">
             <InfoRow label="Author" value="Dave" />
             <InfoRow label="License" value="MIT" />
-            <InfoRow label="Electron" value={process.versions.electron || 'N/A'} />
-            <InfoRow label="Chrome" value={process.versions.chrome || 'N/A'} />
-            <InfoRow label="Node" value={process.versions.node || 'N/A'} />
+            <InfoRow label="Electron" value={processVersions.electron} />
+            <InfoRow label="Chrome" value={processVersions.chrome} />
+            <InfoRow label="Node" value={processVersions.node} />
           </div>
         </div>
       </motion.div>

src/renderer/types/index.ts

@@ -11,6 +11,7 @@ export interface MtrApi {
   stopLossMonitor: () => Promise<void>;
   onLossData: (callback: (state: LossMonitorState) => void) => () => void;
   getVersion: () => Promise<string>;
+  getProcessVersions: () => { electron: string; chrome: string; node: string };
   checkForUpdates: () => Promise<void>;
   downloadUpdate: () => Promise<void>;
   installUpdate: () => Promise<void>;