Add onboarding UI tests and improve app data management

- Add Suite0_OnboardingTests with fresh install and login test flows
- Add accessibility identifiers to onboarding views for UI testing
- Remove deprecated DataCache in favor of unified DataManager
- Update API layer to support public upgrade-triggers endpoint
- Improve onboarding first task view with better date handling
- Update various views with accessibility identifiers for testing
- Fix subscription feature comparison view layout
- Update document detail view improvements

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

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

composeApp/src/commonMain/kotlin/com/example/casera/ui/screens/ContractorDetailScreen.kt

@@ -21,7 +21,7 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
-import com.example.casera.cache.DataCache
+import com.example.casera.data.DataManager
 import com.example.casera.ui.components.AddContractorDialog
 import com.example.casera.ui.components.ApiResultHandler
 import com.example.casera.ui.components.HandleErrors
@@ -117,7 +117,7 @@ fun ContractorDetailScreen(
                 .background(Color(0xFFF9FAFB))
         ) {
             val uriHandler = LocalUriHandler.current
-            val residences = DataCache.residences.value
+            val residences = DataManager.residences.value
 
             ApiResultHandler(
                 state = contractorState,

composeApp/src/commonMain/kotlin/com/example/casera/ui/screens/ResidenceDetailScreen.kt

@@ -34,7 +34,7 @@ import com.example.casera.network.ApiResult
 import com.example.casera.utils.SubscriptionHelper
 import com.example.casera.ui.subscription.UpgradePromptDialog
 import com.example.casera.cache.SubscriptionCache
-import com.example.casera.cache.DataCache
+import com.example.casera.data.DataManager
 import com.example.casera.util.DateUtils
 import casera.composeapp.generated.resources.*
 import org.jetbrains.compose.resources.stringResource
@@ -77,7 +77,7 @@ fun ResidenceDetailScreen(
     var upgradeTriggerKey by remember { mutableStateOf<String?>(null) }
 
     // Get current user for ownership checks
-    val currentUser by DataCache.currentUser.collectAsState()
+    val currentUser by DataManager.currentUser.collectAsState()
 
     // Check if tasks are blocked (limit=0) - this hides the FAB
     val isTasksBlocked = SubscriptionHelper.isTasksBlocked()

composeApp/src/commonMain/kotlin/com/example/casera/ui/screens/onboarding/OnboardingFirstTaskContent.kt

@@ -28,14 +28,14 @@ import com.example.casera.ui.theme.AppRadius
 import com.example.casera.ui.theme.AppSpacing
 import com.example.casera.viewmodel.OnboardingViewModel
 import casera.composeapp.generated.resources.*
-import kotlinx.datetime.Clock
-import kotlinx.datetime.TimeZone
-import kotlinx.datetime.toLocalDateTime
+import com.example.casera.util.DateUtils
 import org.jetbrains.compose.resources.stringResource
-import java.util.UUID
+import kotlin.random.Random
+
+private fun generateId(): String = Random.nextLong().toString(36)
 
 data class OnboardingTaskTemplate(
-    val id: UUID = UUID.randomUUID(),
+    val id: String = generateId(),
     val icon: ImageVector,
     val title: String,
     val category: String,
@@ -43,7 +43,7 @@ data class OnboardingTaskTemplate(
 )
 
 data class OnboardingTaskCategory(
-    val id: UUID = UUID.randomUUID(),
+    val id: String = generateId(),
     val name: String,
     val icon: ImageVector,
     val color: Color,
@@ -56,8 +56,8 @@ fun OnboardingFirstTaskContent(
     onTasksAdded: () -> Unit
 ) {
     val maxTasksAllowed = 5
-    var selectedTaskIds by remember { mutableStateOf(setOf<UUID>()) }
-    var expandedCategoryId by remember { mutableStateOf<UUID?>(null) }
+    var selectedTaskIds by remember { mutableStateOf(setOf<String>()) }
+    var expandedCategoryId by remember { mutableStateOf<String?>(null) }
     var isCreatingTasks by remember { mutableStateOf(false) }
 
     val createTasksState by viewModel.createTasksState.collectAsState()
@@ -328,10 +328,7 @@ fun OnboardingFirstTaskContent(
                             val residences = DataManager.residences.value
                             val residence = residences.firstOrNull()
                             if (residence != null) {
-                                val today = Clock.System.now()
-                                    .toLocalDateTime(TimeZone.currentSystemDefault())
-                                    .date
-                                    .toString()
+                                val today = DateUtils.getTodayString()
 
                                 val selectedTemplates = allTasks.filter { it.id in selectedTaskIds }
                                 val taskRequests = selectedTemplates.map { template ->
@@ -397,11 +394,11 @@ fun OnboardingFirstTaskContent(
 @Composable
 private fun TaskCategorySection(
     category: OnboardingTaskCategory,
-    selectedTaskIds: Set<UUID>,
+    selectedTaskIds: Set<String>,
     isExpanded: Boolean,
     isAtMaxSelection: Boolean,
     onToggleExpand: () -> Unit,
-    onToggleTask: (UUID) -> Unit
+    onToggleTask: (String) -> Unit
 ) {
     val selectedInCategory = category.tasks.count { it.id in selectedTaskIds }