feat: hide tunnel UI for terminal sessions and show session metadata

Backend:
- Add created_at to get_user_sessions response

Frontend:
- Hide tunnel error badges, probe output, and 'Recreate Tunnel' button for terminal-only sessions
- Show session start time (created_at) in active sessions list
- Show repository configuration (clone_mode, branch) for each session
- Skip health check polling for terminal-only sessions
- Update Session type to include created_at field

apps/api/src/api/tool_instances.py

@@ -1437,6 +1437,7 @@ async def get_user_sessions(
             "url": instance.url,
             "clone_mode": instance.clone_mode,
             "branch": instance.branch,
+            "created_at": instance.created_at.isoformat() if instance.created_at else None,
         })
 
     return {"sessions": sessions}

apps/web/src/api/sessions.ts

@@ -29,6 +29,7 @@ export interface Session {
   probe_status?: string;
   clone_mode?: string;
   branch?: string | null;
+  created_at?: string;
 }
 
 export async function listInstances(

apps/web/src/pages/sessions.tsx

@@ -95,11 +95,12 @@ export const SessionsPage = () => {
 
 
 
-  // Poll health every 30 seconds for active instances
+  // Poll health every 30 seconds for active web-enabled instances
   useEffect(() => {
     const checkHealth = async () => {
       const activeSessions = sessions.filter(
         (s) => ["running", "starting", "unhealthy", "probing"].includes(s.status)
+          && s.tool_type_interfaces?.includes("web")
       );
       for (const session of activeSessions) {
         try {
@@ -335,13 +336,25 @@ export const SessionsPage = () => {
               <p className="muted">No active sessions</p>
             ) : (
               <div className="sessions-grid">
-                {activeSessions.map((session) => (
+                {activeSessions.map((session) => {
+                  const isTerminalOnly = session.tool_type_interfaces?.includes("terminal") && !session.tool_type_interfaces?.includes("web");
+                  return (
                   <div className="card session-card" key={session.id}>
                     <div className="session-info">
                       <h4>{session.display_name}</h4>
                       <p className="muted">
                         {session.tool_type_name} · {session.project_name}
                       </p>
+                      {session.created_at && (
+                        <p className="session-meta">
+                          Started: {new Date(session.created_at).toLocaleString()}
+                        </p>
+                      )}
+                      {session.clone_mode && (
+                        <p className="session-meta">
+                          Repo: {session.clone_mode === "clone" ? `clone (${session.branch || "main"})` : "mount"}
+                        </p>
+                      )}
                       {session.url && (
                         <p className="session-url">
                           <a href={session.url} target="_blank" rel="noopener noreferrer">
@@ -356,13 +369,13 @@ export const SessionsPage = () => {
                       {session.status === "probing" && (
                         <span className="status-badge probing">checking...</span>
                       )}
-                      {tunnelHealth[session.id] && tunnelHealth[session.id].tunnel_status === "unreachable" && (
+                      {!isTerminalOnly && tunnelHealth[session.id] && tunnelHealth[session.id].tunnel_status === "unreachable" && (
                         <span className="status-badge error">tunnel error</span>
                       )}
-                      {tunnelHealth[session.id] && tunnelHealth[session.id].tunnel_status === "error_response" && (
+                      {!isTerminalOnly && tunnelHealth[session.id] && tunnelHealth[session.id].tunnel_status === "error_response" && (
                         <span className="status-badge warning">app error ({tunnelHealth[session.id].tunnel_status_code})</span>
                       )}
-                      {tunnelHealth[session.id]?.probe_status && tunnelHealth[session.id]?.probe_status !== "not_applicable" && (
+                      {!isTerminalOnly && tunnelHealth[session.id]?.probe_status && tunnelHealth[session.id]?.probe_status !== "not_applicable" && (
                         <div className="probe-output-section">
                           <button
                             className={`probe-toggle probe-${tunnelHealth[session.id].probe_status}`}
@@ -402,7 +415,7 @@ export const SessionsPage = () => {
                           Open
                         </button>
                       )}
-                      {tunnelHealth[session.id] && tunnelHealth[session.id].tunnel_status === "unreachable" && (
+                      {!isTerminalOnly && tunnelHealth[session.id] && tunnelHealth[session.id].tunnel_status === "unreachable" && (
                         <button
                           className="secondary-button small"
                           onClick={() => void handleRecreateTunnel(session)}
@@ -481,7 +494,7 @@ export const SessionsPage = () => {
                       )}
                     </div>
                   </div>
-                ))}
+                )})}
               </div>
             )}
           </div>