ui: add Cursor adapter option and mark non-functional adapters as Coming Soon

Only Claude Code and Codex are selectable. OpenClaw, Cursor, Shell Command,
and HTTP Webhook are shown as disabled with "Coming soon" across all adapter
selection UIs: onboarding wizard, agent config form, and invite landing page.

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

ui/src/pages/InviteLanding.tsx

@@ -15,14 +15,17 @@ const joinAdapterOptions: AgentAdapterType[] = [
   ...AGENT_ADAPTER_TYPES.filter((type): type is Exclude<AgentAdapterType, "openclaw"> => type !== "openclaw"),
 ];
 
-const adapterLabels: Record<AgentAdapterType, string> = {
+const adapterLabels: Record<string, string> = {
   claude_local: "Claude (local)",
   codex_local: "Codex (local)",
   openclaw: "OpenClaw",
+  cursor: "Cursor",
   process: "Process",
   http: "HTTP",
 };
 
+const ENABLED_INVITE_ADAPTERS = new Set(["claude_local", "codex_local"]);
+
 function dateTime(value: string) {
   return new Date(value).toLocaleString();
 }
@@ -42,7 +45,7 @@ export function InviteLandingPage() {
   const token = (params.token ?? "").trim();
   const [joinType, setJoinType] = useState<JoinType>("human");
   const [agentName, setAgentName] = useState("");
-  const [adapterType, setAdapterType] = useState<AgentAdapterType>("openclaw");
+  const [adapterType, setAdapterType] = useState<AgentAdapterType>("claude_local");
   const [capabilities, setCapabilities] = useState("");
   const [result, setResult] = useState<{ kind: "bootstrap" | "join"; payload: unknown } | null>(null);
   const [error, setError] = useState<string | null>(null);
@@ -255,8 +258,8 @@ export function InviteLandingPage() {
                 onChange={(event) => setAdapterType(event.target.value as AgentAdapterType)}
               >
                 {joinAdapterOptions.map((type) => (
-                  <option key={type} value={type}>
-                    {adapterLabels[type]}
+                  <option key={type} value={type} disabled={!ENABLED_INVITE_ADAPTERS.has(type)}>
+                    {adapterLabels[type]}{!ENABLED_INVITE_ADAPTERS.has(type) ? " (Coming soon)" : ""}
                   </option>
                 ))}
               </select>