Replace status_id with in_progress boolean across mobile apps

- Remove TaskStatus model and status_id foreign key references
- Add in_progress boolean field to task models and forms
- Update TaskApi to use dedicated POST endpoints for task actions:
  - POST /tasks/:id/cancel/ instead of PATCH with is_cancelled
  - POST /tasks/:id/uncancel/
  - POST /tasks/:id/archive/
  - POST /tasks/:id/unarchive/
- Fix iOS TaskViewModel to use error-first pattern for Kotlin-Swift
  generic type bridging issues
- Update iOS callback signatures to pass full TaskResponse instead
  of just taskId to avoid stale closure lookups
- Add in_progress localization strings
- Update widget preview data to use inProgress boolean

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

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

iosApp/iosApp/Task/TaskFormView.swift

@@ -29,15 +29,13 @@ struct TaskFormView: View {
         (!needsResidenceSelection || selectedResidence != nil) &&
         selectedCategory != nil &&
         selectedFrequency != nil &&
-        selectedPriority != nil &&
-        selectedStatus != nil
+        selectedPriority != nil
     }
 
     // Lookups from DataManagerObservable
     private var taskCategories: [TaskCategory] { dataManager.taskCategories }
     private var taskFrequencies: [TaskFrequency] { dataManager.taskFrequencies }
     private var taskPriorities: [TaskPriority] { dataManager.taskPriorities }
-    private var taskStatuses: [TaskStatus] { dataManager.taskStatuses }
     private var isLoadingLookups: Bool { !dataManager.lookupsInitialized }
 
     // Form fields
@@ -47,7 +45,7 @@ struct TaskFormView: View {
     @State private var selectedCategory: TaskCategory?
     @State private var selectedFrequency: TaskFrequency?
     @State private var selectedPriority: TaskPriority?
-    @State private var selectedStatus: TaskStatus?
+    @State private var inProgress: Bool
     @State private var dueDate: Date
     @State private var intervalDays: String
     @State private var estimatedCost: String
@@ -66,7 +64,7 @@ struct TaskFormView: View {
             _selectedCategory = State(initialValue: task.category)
             _selectedFrequency = State(initialValue: task.frequency)
             _selectedPriority = State(initialValue: task.priority)
-            _selectedStatus = State(initialValue: task.status)
+            _inProgress = State(initialValue: task.inProgress)
 
             // Parse date from string
             let formatter = DateFormatter()
@@ -78,6 +76,7 @@ struct TaskFormView: View {
         } else {
             _title = State(initialValue: "")
             _description = State(initialValue: "")
+            _inProgress = State(initialValue: false)
             _dueDate = State(initialValue: Date())
             _intervalDays = State(initialValue: "")
             _estimatedCost = State(initialValue: "")
@@ -246,16 +245,11 @@ struct TaskFormView: View {
                             }
                         }
 
-                        Picker(L10n.Tasks.status, selection: $selectedStatus) {
-                            Text(L10n.Tasks.selectStatus).tag(nil as TaskStatus?)
-                            ForEach(taskStatuses, id: \.id) { status in
-                                Text(status.displayName).tag(status as TaskStatus?)
-                            }
-                        }
+                        Toggle(L10n.Tasks.inProgressLabel, isOn: $inProgress)
                     } header: {
                         Text(L10n.Tasks.priorityAndStatus)
                     } footer: {
-                        Text(L10n.Tasks.bothRequired)
+                        Text(L10n.Tasks.required)
                             .font(.caption)
                             .foregroundColor(Color.appError)
                     }
@@ -409,11 +403,6 @@ struct TaskFormView: View {
             selectedPriority = taskPriorities.first { $0.name == "medium" } ?? taskPriorities.first
         }
 
-        if selectedStatus == nil && !taskStatuses.isEmpty {
-            // Default to "pending"
-            selectedStatus = taskStatuses.first { $0.name == "pending" } ?? taskStatuses.first
-        }
-
         // Set default residence if provided
         if needsResidenceSelection && selectedResidence == nil, let residences = residences, !residences.isEmpty {
             selectedResidence = residences.first
@@ -452,11 +441,6 @@ struct TaskFormView: View {
             isValid = false
         }
 
-        if selectedStatus == nil {
-            viewModel.errorMessage = "Please select a status"
-            isValid = false
-        }
-
         return isValid
     }
 
@@ -465,8 +449,7 @@ struct TaskFormView: View {
 
         guard let category = selectedCategory,
               let frequency = selectedFrequency,
-              let priority = selectedPriority,
-              let status = selectedStatus else {
+              let priority = selectedPriority else {
             return
         }
 
@@ -483,7 +466,7 @@ struct TaskFormView: View {
                 description: description.isEmpty ? nil : description,
                 categoryId: KotlinInt(int: Int32(category.id)),
                 priorityId: KotlinInt(int: Int32(priority.id)),
-                statusId: KotlinInt(int: Int32(status.id)),
+                inProgress: inProgress,
                 frequencyId: KotlinInt(int: Int32(frequency.id)),
                 assignedToId: nil,
                 dueDate: dueDateString,
@@ -514,7 +497,7 @@ struct TaskFormView: View {
                 description: description.isEmpty ? nil : description,
                 categoryId: KotlinInt(int: Int32(category.id)),
                 priorityId: KotlinInt(int: Int32(priority.id)),
-                statusId: selectedStatus.map { KotlinInt(int: Int32($0.id)) },
+                inProgress: inProgress,
                 frequencyId: KotlinInt(int: Int32(frequency.id)),
                 assignedToId: nil,
                 dueDate: dueDateString,