fix: resolve all build compilation and style check warnings (#597)

* fix: resolve all build compilation and style check warnings

* fix: remove unused import in SystemViewModel

app/src/main/java/com/m57/hermescontrol/ui/analytics/AnalyticsScreen.kt

@@ -73,26 +73,31 @@ fun AnalyticsScreen(
         modifier = modifier,
     ) {
         when {
-            state.isLoading && state.usage == null -> LoadingState()
+            state.isLoading && state.usage == null -> {
+                LoadingState()
+            }
 
-            state.errorMessage != null && state.usage == null ->
+            state.errorMessage != null && state.usage == null -> {
                 ErrorState(
                     message = state.errorMessage ?: stringResource(R.string.error_unknown),
                     onRetry = { viewModel.load() },
                 )
+            }
 
-            state.usage == null ->
+            state.usage == null -> {
                 EmptyState(
                     title = stringResource(R.string.analytics_empty_title),
                     subtitle = stringResource(R.string.analytics_empty_desc),
                     icon = Icons.Filled.BarChart,
                 )
+            }
 
-            else ->
+            else -> {
                 AnalyticsContent(
                     state = state,
                     onDaysSelected = viewModel::setDays,
                 )
+            }
         }
     }
 }

app/src/main/java/com/m57/hermescontrol/ui/analytics/AnalyticsViewModel.kt

@@ -105,13 +105,21 @@ class AnalyticsViewModel : ViewModel() {
                     }
                 val error =
                     when {
-                        usage == null && models == null ->
+                        usage == null && models == null -> {
                             failure?.message ?: "Failed to load analytics"
-                        usage == null ->
+                        }
+
+                        usage == null -> {
                             failure?.message ?: "Failed to load usage analytics"
-                        models == null ->
+                        }
+
+                        models == null -> {
                             failure?.message ?: "Failed to load model analytics"
-                        else -> null
+                        }
+
+                        else -> {
+                            null
+                        }
                     }
                 // Only update UI if this is still the active day window.
                 if (_uiState.value.days == days) {