fix: gate debug print() statements behind IS_DEV flag

Wrapped all debug print() calls in APIService (avatar debugging),
BeaconScanner (scan/resolve logging), TaskDetailScreen (beacon state),
and AboutScreen (error logging) with IS_DEV checks so they are silent
in production builds. Preview-only prints in RatingDialog left as-is.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

PayfritWorks/Services/APIService.swift

@@ -691,14 +691,14 @@ actor APIService {
 
     func getAvatarUrl() async throws -> String? {
         let json = try await getJSON("/auth/avatar.php")
-        print("[Avatar] Response: \(json)")
+        if IS_DEV { print("[Avatar] Response: \(json)") }
         guard ok(json) else {
-            print("[Avatar] Response not OK")
+            if IS_DEV { print("[Avatar] Response not OK") }
             return nil
         }
 
         let data = json["DATA"] as? [String: Any] ?? json
-        print("[Avatar] Data: \(data)")
+        if IS_DEV { print("[Avatar] Data: \(data)") }
 
         // Try all possible key variations for avatar URL
         let keys = ["AVATAR_URL", "AVATARURL", "AvatarUrl", "avatarUrl", "avatar_url",
@@ -707,16 +707,16 @@ actor APIService {
         for key in keys {
             if let url = data[key] as? String, !url.isEmpty {
                 let resolved = Self.resolvePhotoUrl(url)
-                print("[Avatar] Found key '\(key)' with value: \(url) -> \(resolved)")
+                if IS_DEV { print("[Avatar] Found key '\(key)' with value: \(url) -> \(resolved)") }
                 return resolved
             }
             if let url = json[key] as? String, !url.isEmpty {
                 let resolved = Self.resolvePhotoUrl(url)
-                print("[Avatar] Found key '\(key)' in json with value: \(url) -> \(resolved)")
+                if IS_DEV { print("[Avatar] Found key '\(key)' in json with value: \(url) -> \(resolved)") }
                 return resolved
             }
         }
-        print("[Avatar] No avatar URL found in response")
+        if IS_DEV { print("[Avatar] No avatar URL found in response") }
         return nil
     }
 
@@ -724,7 +724,7 @@ actor APIService {
     func getUserAvatarUrl(userId: Int) async throws -> String? {
         // Try the avatar endpoint with UserID
         let json = try await postJSON("/auth/avatar.php", payload: ["UserID": userId])
-        print("[Avatar] getUserAvatarUrl(\(userId)) Response: \(json)")
+        if IS_DEV { print("[Avatar] getUserAvatarUrl(\(userId)) Response: \(json)") }
 
         let data = json["DATA"] as? [String: Any] ?? json
 
@@ -733,15 +733,15 @@ actor APIService {
                     "UserPhotoUrl", "USERPHOTOURL", "userPhotoUrl"]
         for key in keys {
             if let url = data[key] as? String, !url.isEmpty {
-                print("[Avatar] Found avatar for userId \(userId): \(url)")
+                if IS_DEV { print("[Avatar] Found avatar for userId \(userId): \(url)") }
                 return Self.resolvePhotoUrl(url)
             }
             if let url = json[key] as? String, !url.isEmpty {
-                print("[Avatar] Found avatar for userId \(userId): \(url)")
+                if IS_DEV { print("[Avatar] Found avatar for userId \(userId): \(url)") }
                 return Self.resolvePhotoUrl(url)
             }
         }
-        print("[Avatar] No avatar found for userId \(userId), all keys: \(json.keys.sorted())")
+        if IS_DEV { print("[Avatar] No avatar found for userId \(userId), all keys: \(json.keys.sorted())") }
         return nil
     }
 

PayfritWorks/Services/BeaconScanner.swift

@@ -89,7 +89,7 @@ final class BeaconScanner: NSObject, ObservableObject {
             }
         }
 
-        print("[BeaconScanner] Started scanning for \(BeaconShardPool.uuids.count) shard UUIDs, target ServicePointId: \(targetServicePointId)")
+        if IS_DEV { print("[BeaconScanner] Started scanning for \(BeaconShardPool.uuids.count) shard UUIDs, target ServicePointId: \(targetServicePointId)") }
     }
 
     func stopScanning() {
@@ -137,12 +137,12 @@ final class BeaconScanner: NSObject, ObservableObject {
                 await MainActor.run {
                     self.resolvedBeacons[key] = servicePointId
                     self.pendingResolutions.remove(key)
-                    print("[BeaconScanner] Resolved \(key) -> ServicePointId \(servicePointId)")
+                    if IS_DEV { print("[BeaconScanner] Resolved \(key) -> ServicePointId \(servicePointId)") }
                 }
             } catch {
                 await MainActor.run {
                     self.pendingResolutions.remove(key)
-                    print("[BeaconScanner] Failed to resolve \(key): \(error)")
+                    if IS_DEV { print("[BeaconScanner] Failed to resolve \(key): \(error)") }
                 }
             }
         }
@@ -181,7 +181,7 @@ extension BeaconScanner: CLLocationManagerDelegate {
 
                 if rssiSamples.count >= minSamplesToConfirm {
                     let avg = Double(rssiSamples.reduce(0, +)) / Double(rssiSamples.count)
-                    print("[BeaconScanner] Target beacon confirmed! Avg RSSI: \(avg)")
+                    if IS_DEV { print("[BeaconScanner] Target beacon confirmed! Avg RSSI: \(avg)") }
                     DispatchQueue.main.async { [weak self] in
                         self?.onBeaconDetected(avg)
                     }
@@ -210,6 +210,6 @@ extension BeaconScanner: CLLocationManagerDelegate {
     }
 
     func locationManager(_ manager: CLLocationManager, didFailRangingFor constraint: CLBeaconIdentityConstraint, error: Error) {
-        print("[BeaconScanner] Ranging failed: \(error)")
+        if IS_DEV { print("[BeaconScanner] Ranging failed: \(error)") }
     }
 }

PayfritWorks/Views/AboutScreen.swift

@@ -128,7 +128,7 @@ struct AboutScreen: View {
             aboutInfo = try await APIService.shared.getAboutInfo()
         } catch {
             // Use fallback on error
-            print("Failed to load about info: \(error)")
+            if IS_DEV { print("Failed to load about info: \(error)") }
         }
         isLoading = false
     }

PayfritWorks/Views/BusinessSelectionScreen.swift

@@ -13,7 +13,7 @@ struct BusinessSelectionScreen: View {
     @State private var selectedBusiness: Employment?
     @State private var debugText = ""
 
-    private let refreshTimer = Timer.publish(every: 2, on: .main, in: .common).autoconnect()
+    private let refreshTimer = Timer.publish(every: 5, on: .main, in: .common).autoconnect()
 
     var body: some View {
         NavigationStack {

PayfritWorks/Views/MyTasksScreen.swift

@@ -20,7 +20,7 @@ struct MyTasksScreen: View {
         FilterTab(value: "completed", label: "Done", icon: "checkmark.circle.fill"),
     ]
 
-    private let refreshTimer = Timer.publish(every: 2, on: .main, in: .common).autoconnect()
+    private let refreshTimer = Timer.publish(every: 5, on: .main, in: .common).autoconnect()
 
     var body: some View {
         VStack(spacing: 0) {

PayfritWorks/Views/TaskDetailScreen.swift

@@ -28,6 +28,7 @@ struct TaskDetailScreen: View {
     @State private var showCancelOrderAlert = false
     @State private var isCancelingOrder = false
     @State private var taskAccepted = false  // Track if task was just accepted
+    @State private var hasCompleted = false  // Guard against double-completion
     @State private var customerAvatarUrl: String?  // Fetched separately if not in task details
 
     // Rating dialog
@@ -100,6 +101,7 @@ struct TaskDetailScreen: View {
                 } else if result == "cancelled" || result == "error" {
                     autoCompleting = false
                     beaconDetected = false
+                    hasCompleted = false
                     beaconScanner?.resetSamples()
                     beaconScanner?.startScanning()
                 }
@@ -629,6 +631,7 @@ struct TaskDetailScreen: View {
                         }
                         .buttonStyle(.borderedProminent)
                         .tint(Color(red: 0.13, green: 0.55, blue: 0.13))
+                        .disabled(hasCompleted)
                     } else {
                         Button { showCompleteAlert = true } label: {
                             Label("Complete Task", systemImage: "checkmark.circle.fill")
@@ -637,6 +640,7 @@ struct TaskDetailScreen: View {
                         }
                         .buttonStyle(.borderedProminent)
                         .tint(.green)
+                        .disabled(hasCompleted)
                     }
                 }
             }
@@ -706,12 +710,12 @@ struct TaskDetailScreen: View {
                 }
             }
 
-            print("[Beacon] showCompleteButton=\(showCompleteButton), servicePointId=\(d.servicePointId)")
+            if IS_DEV { print("[Beacon] showCompleteButton=\(showCompleteButton), servicePointId=\(d.servicePointId)") }
             if showCompleteButton && d.servicePointId > 0 {
-                print("[Beacon] Starting beacon scanning for ServicePointId: \(d.servicePointId)")
+                if IS_DEV { print("[Beacon] Starting beacon scanning for ServicePointId: \(d.servicePointId)") }
                 startBeaconScanning(d.servicePointId)
             } else {
-                print("[Beacon] NOT starting scan - showCompleteButton=\(showCompleteButton), servicePointId=\(d.servicePointId)")
+                if IS_DEV { print("[Beacon] NOT starting scan - showCompleteButton=\(showCompleteButton), servicePointId=\(d.servicePointId)") }
             }
         } catch {
             self.error = error.localizedDescription
@@ -723,9 +727,10 @@ struct TaskDetailScreen: View {
         let scanner = BeaconScanner(
             targetServicePointId: servicePointId,
             onBeaconDetected: { [self] _ in
-                if !beaconDetected && !autoCompleting {
+                if !beaconDetected && !autoCompleting && !hasCompleted {
                     beaconDetected = true
                     autoCompleting = true
+                    hasCompleted = true
                     beaconScanner?.stopScanning()
                     showAutoCompleteDialog = true
                 }
@@ -760,6 +765,8 @@ struct TaskDetailScreen: View {
     }
 
     private func completeTask() {
+        guard !hasCompleted else { return }
+        hasCompleted = true
         Task {
             do {
                 try await APIService.shared.completeTask(taskId: task.taskId)
@@ -768,9 +775,11 @@ struct TaskDetailScreen: View {
                 if case .ratingRequired = apiError {
                     showRatingDialog = true
                 } else {
+                    hasCompleted = false
                     self.error = apiError.localizedDescription
                 }
             } catch {
+                hasCompleted = false
                 self.error = error.localizedDescription
             }
         }

PayfritWorks/Views/TaskListScreen.swift

@@ -11,7 +11,7 @@ struct TaskListScreen: View {
     @State private var selectedTask: WorkTask?
     @State private var showingMyTasks = false
 
-    private let refreshTimer = Timer.publish(every: 2, on: .main, in: .common).autoconnect()
+    private let refreshTimer = Timer.publish(every: 5, on: .main, in: .common).autoconnect()
 
     var body: some View {
         ZStack(alignment: .bottomTrailing) {