Feat: Show member count in channel dropdown

Add voice channel member count (non-bot users) to channel API
response and display it in the dropdown button and menu options.
Shows (N) suffix when users are in a channel.

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

web/src/App.tsx

@@ -610,7 +610,7 @@ export default function App() {
             >
               <span className="material-icons cb-icon">headset</span>
               {selected && <span className="channel-status" />}
-              <span className="channel-label">{selectedChannel?.channelName || 'Channel...'}</span>
+              <span className="channel-label">{selectedChannel ? `${selectedChannel.channelName}${selectedChannel.members ? ` (${selectedChannel.members})` : ''}` : 'Channel...'}</span>
               <span className={`material-icons chevron`}>expand_more</span>
             </button>
             {channelOpen && (
@@ -625,7 +625,7 @@ export default function App() {
                         onClick={() => handleChannelSelect(ch)}
                       >
                         <span className="material-icons co-icon">volume_up</span>
-                        {ch.channelName}
+                        {ch.channelName}{ch.members ? ` (${ch.members})` : ''}
                       </div>
                     ))}
                   </React.Fragment>

web/src/types.ts

@@ -20,6 +20,7 @@ export type VoiceChannelInfo = {
   guildName: string;
   channelId: string;
   channelName: string;
+  members?: number;
   selected?: boolean;
 };