fix(hub): adjust no-group prompt and post-create wizard step

No-group home/explore message: when the hub offers no public groups,
drop the "browse public groups" invitation and just ask to be invited
by an admin. New home.invite_only key added to all ten catalogues.

Create-group wizard done step: reword the message to point at inviting
members, and send the button to the group's Settings tab (where the
invite form lives) instead of a stale /groups/<id> path that never
matched the router. The landing tab is a one-shot session hint, so the
usual per-user default-tab preference is left untouched.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QNPfgH6VWcRzJDZGuzy1jJ

1 files changed, 19 insertions, 2 deletions

diff --git a/packages/meshbay-hub/src/meshbay_hub/static/group-page.js b/packages/meshbay-hub/src/meshbay_hub/static/group-page.js
index d7c81ad..6b9c82a 100644
--- a/packages/meshbay-hub/src/meshbay_hub/static/group-page.js
+++ b/packages/meshbay-hub/src/meshbay_hub/static/group-page.js
@@ -35,8 +35,25 @@ function GroupPage({ groupId, group, token, username, userId, userPrefs,
   const [descDraft, setDescDraft] = useState('');
   const [savingDesc, setSavingDesc] = useState(false);
   const defaultTab = (userPrefs && (userPrefs[`default_tab:${groupId}`] || userPrefs['default_tab'])) || 'chat';
-  const [tab, setTab] = useState(defaultTab);
-  useEffect(() => { setTab(defaultTab); }, [groupId]);
+  // The create-group wizard can request a one-shot landing tab (Settings, where
+  // the invite form is) via session.openGroupTab. It applies once, only to the
+  // group it names, and never touches the user's default-tab preference — every
+  // other way into a group still lands on that preference, or 'chat'.
+  const consumeTabOverride = useCallback(() => {
+    const o = session.openGroupTab;
+    if (o && o.groupId === groupId) { session.openGroupTab = null; return o.tab; }
+    return null;
+  }, [groupId]);
+  const [tab, setTab] = useState(() => consumeTabOverride() || defaultTab);
+  // GroupPage is not remounted when switching groups (see the refreshedRef note
+  // below), so react to a real groupId change here — but not to the initial
+  // mount, where useState already picked the right tab.
+  const tabGroupRef = useRef(groupId);
+  useEffect(() => {
+    if (tabGroupRef.current === groupId) return;
+    tabGroupRef.current = groupId;
+    setTab(consumeTabOverride() || defaultTab);
+  }, [groupId]);
   const [groupMuted, setGroupMuted] = useState(() => !!(group && group.muted));
 
   const _lastTouch = useRef(0);