feat: Implement core Discord features including members list, direct messages, user presence, authentication, and chat UI.

Frontend/Electron/preload.cjs

@@ -24,3 +24,14 @@ contextBridge.exposeInMainWorld('windowControls', {
     maximize: () => ipcRenderer.send('window-maximize'),
     close: () => ipcRenderer.send('window-close'),
 });
+
+contextBridge.exposeInMainWorld('appSettings', {
+    get: (key) => ipcRenderer.invoke('get-setting', key),
+    set: (key, value) => ipcRenderer.invoke('set-setting', key, value),
+});
+
+contextBridge.exposeInMainWorld('sessionPersistence', {
+    save: (data) => ipcRenderer.invoke('save-session', data),
+    load: () => ipcRenderer.invoke('load-session'),
+    clear: () => ipcRenderer.invoke('clear-session'),
+});