Fix vertical offset in ScreenCaptureKit crops

The captured CGImage has a top-left origin, while the crop rect was
computed in SCDisplay space (bottom-left). Flip Y within the display's
bounds when converting to pixel coordinates so the crop lands exactly
where the user selected.

💘 Generated with Crush

Assisted-by: Crush:deepseek-v4-flash-0731

Sources/Kapture/CaptureController.swift

@@ -118,18 +118,18 @@ final class ScreenCapture {
 
     @available(macOS 14.0, *)
     private func crop(_ image: CGImage, to cgRect: CGRect, display: SCDisplay) -> CGImage? {
-        // cgRect is already in SCDisplay space (Y flipped relative to AppKit).
+        // cgRect is in SCDisplay space (bottom-left origin, Y flipped vs AppKit).
-        // Derive the pixel scale from the image we actually got, relative to
+        // The captured image has a TOP-LEFT origin. So within the display,
-        // the display's point frame.
+        // we must flip Y: pixelY = displayHeight - (cgY - displayMinY) - cgHeight.
         let scaleX = CGFloat(image.width) / display.frame.width
         let scaleY = CGFloat(image.height) / display.frame.height
         guard scaleX > 0, scaleY > 0 else { return nil }
-        // pxRect is in image pixel space with a TOP-LEFT origin (SCDisplay space).
+        let localMinX = cgRect.minX - display.frame.minX
-        // CGImage.cropping(to:) expects the same top-left rect, so no Y flip
+        let localMaxY = cgRect.maxY - display.frame.minY
-        // is needed here — this preserves the previous CGContext behavior.
+        let flippedY = display.frame.height - localMaxY
         let pxRect = CGRect(
-            x: (cgRect.minX - display.frame.minX) * scaleX,
+            x: localMinX * scaleX,
-            y: (cgRect.minY - display.frame.minY) * scaleY,
+            y: flippedY * scaleY,
             width: cgRect.width * scaleX,
             height: cgRect.height * scaleY
         )

build-app.sh

@@ -108,9 +108,9 @@ cat > "$APP/Contents/Info.plist" <<'PLIST'
     <key>CFBundleIconFile</key>
     <string>Icon</string>
     <key>CFBundleShortVersionString</key>
-    <string>1.3.1</string>
+    <string>1.3.2</string>
     <key>CFBundleVersion</key>
-    <string>31</string>
+    <string>32</string>
     <key>LSUIElement</key>
     <true/>
     <key>NSHighResolutionCapable</key>