Add more detailed logging to object detection flow

CheapRetouch/Features/Editor/EditorViewModel.swift

@@ -241,15 +241,23 @@ final class EditorViewModel {
     }
 
     private func handleObjectTap(at point: CGPoint, in image: CGImage) async throws {
+        DebugLogger.log("handleObjectTap at \(point)")
+        DebugLogger.log("Calling maskingService.generateForegroundMask...")
+
         let mask = try await maskingService.generateForegroundMask(at: point, in: image)
 
+        DebugLogger.log("generateForegroundMask returned")
+        DebugLogger.imageInfo("Object mask", image: mask)
+
         guard let mask = mask else {
+            DebugLogger.log("No mask returned - prompting for brush tool")
             errorMessage = "Couldn't detect object. Try the brush tool to select manually."
             return
         }
 
         maskPreview = mask
         showingMaskConfirmation = true
+        DebugLogger.state("Object mask preview set, showing confirmation")
     }
 
     private func handleWireTap(at point: CGPoint, in image: CGImage) async throws {

CheapRetouch/Services/MaskingService.swift

@@ -157,35 +157,48 @@ actor MaskingService {
     }
 
     func generateForegroundMask(at point: CGPoint, in image: CGImage) async throws -> CGImage? {
+        DebugLogger.processing("generateForegroundMask at \(point)")
+        DebugLogger.log("Image: \(image.width)x\(image.height)")
+
         let request = VNGenerateForegroundInstanceMaskRequest()
+        DebugLogger.log("Created VNGenerateForegroundInstanceMaskRequest")
 
         let handler = VNImageRequestHandler(cgImage: image, options: [:])
+        DebugLogger.log("Created VNImageRequestHandler, performing request...")
 
         do {
             try handler.perform([request])
+            DebugLogger.log("Vision request completed successfully")
         } catch {
+            DebugLogger.error("Vision request failed", error: error)
             throw MaskingError.requestFailed(error)
         }
 
         guard let result = request.results?.first else {
+            DebugLogger.log("No results from Vision request")
             return nil
         }
 
+        DebugLogger.log("Got Vision result with \(result.allInstances.count) instances")
+
         // Normalize point to Vision coordinates (0-1, origin bottom-left)
         let visionPoint = CGPoint(
             x: point.x / CGFloat(image.width),
             y: 1.0 - point.y / CGFloat(image.height)
         )
+        DebugLogger.log("Vision point: \(visionPoint)")
 
         // Find instance at tap point
         let instances = result.allInstances
         var targetInstance: IndexSet?
 
+        DebugLogger.log("Checking \(instances.count) instances for tap point...")
         for instance in instances {
             let indexSet = IndexSet(integer: instance)
             if let maskPixelBuffer = try? result.generateScaledMaskForImage(forInstances: indexSet, from: handler) {
                 // Check if point is within this instance's mask
                 if isPoint(visionPoint, inMask: maskPixelBuffer, imageSize: CGSize(width: image.width, height: image.height)) {
+                    DebugLogger.log("Found instance \(instance) at tap point")
                     targetInstance = indexSet
                     break
                 }
@@ -193,11 +206,16 @@ actor MaskingService {
         }
 
         guard let instance = targetInstance else {
+            DebugLogger.log("No instance found at tap point")
             return nil
         }
 
+        DebugLogger.log("Generating mask for selected instance...")
         let maskPixelBuffer = try result.generateScaledMaskForImage(forInstances: instance, from: handler)
-        return convertPixelBufferToCGImage(maskPixelBuffer)
+        DebugLogger.log("Mask generated, converting to CGImage...")
+        let cgImage = convertPixelBufferToCGImage(maskPixelBuffer)
+        DebugLogger.imageInfo("Generated mask", image: cgImage)
+        return cgImage
     }
 
     func generateAllForegroundMasks(in image: CGImage) async throws -> CGImage? {