feat: integrate agent edit profile screen as an embedded tab in profile settings and restrict agent connection actions to non-agent users

lib/features/agents/presentation/screens/agent_detail_screen.dart

@@ -257,6 +257,9 @@ class _AgentDetailScreenState extends ConsumerState<AgentDetailScreen> {
     final agent = state.agent!;
     final isAvailable = agent.isAvailable;
     final connState = state.connectionState;
+    // Hide the Connect/Pending/Unlink button when the viewer is an AGENT —
+    // the platform does not support agent-to-agent connections.
+    final viewerIsAgent = ref.watch(authProvider).user?.role == 'AGENT';
 
     return Padding(
       padding: const EdgeInsets.symmetric(horizontal: 38),
@@ -302,18 +305,20 @@ class _AgentDetailScreenState extends ConsumerState<AgentDetailScreen> {
                   ),
                 ),
                 const Spacer(),
-                // Connect/Pending/Unlink button
-                _buildConnectButton(
-                  connState,
-                  isAvailable,
-                  () => _handleConnect(state),
-                ),
-                const SizedBox(width: 4),
+                // Connect/Pending/Unlink button — hidden for agent viewers
+                if (!viewerIsAgent) ...[
+                  _buildConnectButton(
+                    connState,
+                    isAvailable,
+                    () => _handleConnect(state),
+                  ),
+                  const SizedBox(width: 4),
+                ],
               ],
             ),
           ),
-          // Start Message button when connected
-          if (connState == 'accepted') ...[
+          // Start Message button when connected (only for non-agent viewers)
+          if (!viewerIsAgent && connState == 'accepted') ...[
             const SizedBox(height: 12),
             _buildStartMessageButton(agent),
           ],

lib/features/agents/presentation/screens/agent_edit_profile_screen.dart

@@ -71,7 +71,11 @@ class _EditProfileData {
 // ---------------------------------------------------------------------------
 
 class AgentEditProfileScreen extends ConsumerStatefulWidget {
-  const AgentEditProfileScreen({super.key});
+  /// When true, omits the in-screen back button + title row so this widget can
+  /// be embedded inside another shell (e.g. a tab in ProfileSettingsScreen).
+  final bool embedded;
+
+  const AgentEditProfileScreen({super.key, this.embedded = false});
 
   @override
   ConsumerState<AgentEditProfileScreen> createState() =>
@@ -433,6 +437,10 @@ class _AgentEditProfileScreenState
   Widget build(BuildContext context) {
     final asyncData = ref.watch(_editProfileDataProvider);
 
+    if (widget.embedded) {
+      return _buildBody(asyncData);
+    }
+
     return Column(
       children: [
         // Header with back button