feat: Add desktop notification for user logout events

Displays 'You've been logged out' notification when users are randomly
logged out, helping maintain awareness during working hours and enabling
prompt reconnection to maintain productivity.

Author: Dark-Kernel

src/i18n/en.i18n.json

@@ -162,7 +162,8 @@
       "downloadCancelled": "Download Cancelled",
       "downloadFailed": "Download Failed",
       "downloadExpired": "Downlaod Expired",
-      "downloadExpiredMessage": "Please retry downloading from source."
+      "downloadExpiredMessage": "Please retry downloading from source.",
+      "userLoggedOut": "You've been logged out"
     },
     "filters": {
       "search": "Search",
@@ -438,4 +439,4 @@
     "cancel": "Cancel",
     "share": "Share"
   }
-}
+}

src/servers/main.ts

@@ -5,12 +5,15 @@ import { app } from 'electron';
 import { satisfies, coerce } from 'semver';
 
 import { packageJsonInformation } from '../app/main/app';
+import i18n from '../i18n/main';
 import { invoke } from '../ipc/main';
+import { createNotification } from '../notifications/preload';
 import { select, dispatch, listen } from '../store';
 import { hasMeta } from '../store/fsa';
 import {
   WEBVIEW_GIT_COMMIT_HASH_CHANGED,
   WEBVIEW_GIT_COMMIT_HASH_CHECK,
+  WEBVIEW_USER_LOGGED_IN,
 } from '../ui/actions';
 import { getRootWindow } from '../ui/main/rootWindow';
 import { getWebContentsByServerUrl } from '../ui/main/serverView';
@@ -203,6 +206,24 @@ export const setupServers = async (
     }
   });
 
+  const userLoginStates = new Map<string, boolean>();
+
+  listen(WEBVIEW_USER_LOGGED_IN, async (action) => {
+    const { url, userLoggedIn } = action.payload;
+    const previousState = userLoginStates.get(url);
+
+    if (previousState === true && userLoggedIn === false) {
+      await createNotification({
+        title: i18n.t('downloads.notifications.userLoggedOut'),
+        body: '',
+      });
+    }
+
+    if (typeof userLoggedIn === 'boolean') {
+      userLoginStates.set(url, userLoggedIn);
+    }
+  });
+
   let servers = select(({ servers }) => servers);
 
   let currentServerUrl = select(({ currentView }) =>