feat: auto-join #ops on first login (web + TUI)

New users with no peer/group set automatically join #ops so they
have someone to talk to. Saved peer overrides this on subsequent visits.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

warzone/crates/warzone-server/src/routes/web.rs

@@ -925,9 +925,20 @@ async function enterChat() {
   addSys('/alias · /g · /gleave · /gkick · /gmembers · /glist · /friend · /file · /info');
 
   const savedPeer = localStorage.getItem('wz-peer');
-  if (savedPeer) $peerInput.value = savedPeer;
+  if (savedPeer) {
+    $peerInput.value = savedPeer;
+  }
 
   connectWebSocket();
+
+  // Auto-join #ops if no peer/group set
+  if (!savedPeer) {
+    setTimeout(async () => {
+      await groupSwitch('ops');
+      addSys('Welcome! You have been added to #ops');
+    }, 500);
+  }
+
   $input.focus();
 }