Add screen recording, crop, and a Cap-style result window

Recording: Ctrl+Shift+Cmd+R (or the menu) opens the same selection
flow — a marquee records that region, clicking a window records it
(following moves). Video is H.264 .mov at 60fps via SCStream ->
AVAssetWriter with the cursor included, auto-saved to ~/Movies and
revealed in Finder on stop. A red border and a floating timer/stop bar
show during recording, both excluded from the video. Audio is wired
behind a flag for later.

The result window gains a Crop button (crop to the selection;
annotations translate and stay editable) and is restyled after Cap:
sliding-pill Screenshot/Text switcher, capsule buttons in Cap blue,
circular icon buttons, and the content on a rounded card — light and
dark.

Generated with OpenCode

Assisted-by: Kimi:k3

Sources/Kapture/CaptureController.swift

@@ -79,16 +79,22 @@ final class CaptureController: NSObject {
     /// Frozen mode: the screen is snapshotted at hotkey press, so the pointer
     /// and any hover state (tooltips, open menus) end up in the capture.
     private(set) var isFrozenMode = false
+    /// Recording mode: the selection flow ends in a recording, not a still.
+    private(set) var isRecordingMode = false
     private var frozenSnapshots: [ScreenCapture.DisplaySnapshot] = []
 
-    func begin(frozen: Bool = false) {
+    func begin(frozen: Bool = false, recording: Bool = false) {
         guard !isSelecting else { return }
+        // No new captures while a recording is running (the selection
+        // overlays would end up in the video).
+        guard !RecordingController.shared.state.isRecording else { return }
         guard PermissionManager.isGranted else {
             PermissionManager.request()
             return
         }
         isSelecting = true
-        isFrozenMode = frozen
+        isFrozenMode = frozen && !recording
+        isRecordingMode = recording
         previousApp = NSWorkspace.shared.frontmostApplication
         // With the event tap driving input we must NOT activate: stealing
         // focus turns the target app into background mode (dimmed chrome),
@@ -98,7 +104,7 @@ final class CaptureController: NSObject {
         if !usesTap {
             NSApp.activate(ignoringOtherApps: true)
         }
-        CaptureController.log("begin: frozen=\(frozen) usesTap=\(usesTap) active=\(NSApp.isActive)")
+        CaptureController.log("begin: frozen=\(isFrozenMode) recording=\(recording) usesTap=\(usesTap) active=\(NSApp.isActive)")
 
         if frozen {
             ScreenCapture.shared.snapshotAllDisplays(includeCursor: true) { [weak self] snapshots in
@@ -137,9 +143,20 @@ final class CaptureController: NSObject {
     /// corners come from the window's own alpha).
     private func finishWindowPick(_ windowID: CGWindowID, _ rect: NSRect, ownedRisk: Bool) {
         let ids = overlayIDs
+        let recording = isRecordingMode
         hideOverlays()
         isSelecting = false
         restorePreviousApp()
+        if recording {
+            // Owned-popup risk: record the screen region instead of the
+            // window filter, which could composite the parent into the video.
+            RecordingController.shared.begin(
+                region: rect,
+                windowID: ownedRisk ? nil : windowID,
+                excludingWindowIDs: ids
+            )
+            return
+        }
         DispatchQueue.main.async { [self] in
             if ownedRisk {
                 capture(rect, excludingWindowIDs: ids, roundedCorners: true)
@@ -153,6 +170,7 @@ final class CaptureController: NSObject {
         let ids = overlayIDs
         let frozen = frozenSnapshots
         let wasFrozen = isFrozenMode
+        let recording = isRecordingMode
         hideOverlays()
         guard rect.width >= 2, rect.height >= 2 else {
             cancelSelection()
@@ -175,6 +193,13 @@ final class CaptureController: NSObject {
             return
         }
 
+        if recording {
+            isSelecting = false
+            restorePreviousApp()
+            RecordingController.shared.begin(region: rect, windowID: nil, excludingWindowIDs: ids)
+            return
+        }
+
         DispatchQueue.main.async { [self] in
             capture(rect, excludingWindowIDs: ids)
         }
@@ -195,6 +220,7 @@ final class CaptureController: NSObject {
         marqueeStart = nil
         frozenSnapshots = []
         isFrozenMode = false
+        isRecordingMode = false
     }
 
     private func restorePreviousApp() {