fix: log environment API user only once per session

- Store user in static variable for reuse
- Only debugPrint on first successful load

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

lib/features/front_hall/presentation/widgets/dashboard_content.dart

@@ -26,6 +26,13 @@ class _DashboardContentState extends ConsumerState<DashboardContent> {
   Timer? _systemStatsTimer;
   Timer? _environmentTimer;
 
+  /// Tracks if we've logged the environment API user (log once per session)
+  static bool _hasLoggedEnvUser = false;
+  static String? _envApiUser;
+
+  /// Get the environment API user (available after first load)
+  static String? get envApiUser => _envApiUser;
+
   @override
   void initState() {
     super.initState();
@@ -133,8 +140,12 @@ class _DashboardContentState extends ConsumerState<DashboardContent> {
         const SizedBox(height: 8),
         environmentAsync.when(
           data: (envData) {
-            // Debug: log user on first load
-            debugPrint('Environment API user: ${envData.user}');
+            // Store and log user once per session
+            if (!_hasLoggedEnvUser && envData.user != null) {
+              _envApiUser = envData.user;
+              _hasLoggedEnvUser = true;
+              debugPrint('Environment API user: ${envData.user}');
+            }
             return _EnvironmentSection(
               envData: envData,
               onRefresh: () => ref.invalidate(environmentProvider),