Use content_copy icon for copy link button; fix missing buttons in personal workspace by granting full permissions for orgId empty

b0esche_cloud/lib/blocs/permission/permission_bloc.dart

@@ -17,7 +17,16 @@ class PermissionBloc extends Bloc<PermissionEvent, PermissionState> {
     Emitter<PermissionState> emit,
   ) async {
     if (event.orgId.isEmpty) {
-      emit(PermissionInitial());
+      // Personal workspace - assume full permissions
+      final capabilities = Capabilities(
+        canRead: true,
+        canWrite: true,
+        canShare: true,
+        canAdmin: true,
+        canAnnotate: true,
+        canEdit: true,
+      );
+      emit(PermissionLoaded(capabilities));
       return;
     }
     emit(PermissionLoading());

b0esche_cloud/lib/widgets/organization_settings_dialog.dart

@@ -472,7 +472,7 @@ class _OrganizationSettingsDialogState
               const SizedBox(width: 16),
               ModernGlassButton(
                 onPressed: _copyInviteLink,
-                child: const Text('Copy Link'),
+                child: const Icon(Icons.content_copy),
               ),
               if (_canManage) ...[
                 const SizedBox(width: 16),