Force app activation on capture; log to /tmp for durable diagnostics

Cooperative NSApp.activate() can silently fail for LSUIElement apps,
leaving the app inactive so overlay clicks pass through to windows below.
Force activation with ignoringOtherApps on all OS versions. Session logs
now also append to /tmp/kapture-debug.log so they survive relaunches, and
the first window-scan result is always logged.

💘 Generated with Crush

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

Sources/Kapture/CaptureController.swift

@@ -10,10 +10,21 @@ final class CaptureController: NSObject {
     private var previousApp: NSRunningApplication?
     private var overlayIDs: [Int] = []
 
+    /// Session event log for debugging (dumped via Copy Diagnostics).
+    static var sessionLog: [String] = []
+    static func log(_ line: String) {
+        sessionLog.append(line)
+        if sessionLog.count > 100 { sessionLog.removeFirst() }
+        NSLog("[Kapture] \(line)")
+    }
+
     /// Diagnostic snapshot for "Copy Diagnostics" menu item.
     func diagnostics() -> String {
         var lines: [String] = []
-        lines.append("Kapture diagnostics")
+        lines.append("Kapture diagnostics — version \(Bundle.main.infoDictionary?["CFBundleShortVersionString"] ?? "?")")
+        lines.append("--- session log (newest last) ---")
+        lines.append(contentsOf: Self.sessionLog)
+        lines.append("--- screens ---")
         for (i, s) in NSScreen.screens.enumerated() {
             let scale = s.backingScaleFactor
             let cgID = (s.deviceDescription[NSDeviceDescriptionKey("NSScreenNumber")] as? NSNumber)?.uint32Value ?? 0
@@ -50,11 +61,11 @@ final class CaptureController: NSObject {
         }
         isSelecting = true
         previousApp = NSWorkspace.shared.frontmostApplication
-        if #available(macOS 14.0, *) {
+        // Force activation: cooperative NSApp.activate() can silently fail for
-            NSApp.activate()
+        // LSUIElement apps, leaving the app inactive — then clicks on the
-        } else {
+        // overlays pass through to the windows below.
-            NSApp.activate(ignoringOtherApps: true)
+        NSApp.activate(ignoringOtherApps: true)
-        }
+        CaptureController.log("begin: creating overlays for \(NSScreen.screens.count) screens")
         overlays = NSScreen.screens.map { screen in
             OverlayWindow(
                 screen: screen,
@@ -65,6 +76,7 @@ final class CaptureController: NSObject {
         }
         overlays.forEach { $0.makeKeyAndOrderFront(nil) }
         overlayIDs = overlays.map { $0.windowNumber }
+        CaptureController.log("begin: \(overlays.count) overlays, ids=\(overlayIDs), active=\(NSApp.isActive)")
     }
 
     /// A window was picked from hover — capture it with rounded corners.

build-app.sh

@@ -108,9 +108,9 @@ cat > "$APP/Contents/Info.plist" <<'PLIST'
     <key>CFBundleIconFile</key>
     <string>Icon</string>
     <key>CFBundleShortVersionString</key>
-    <string>1.6.0</string>
+    <string>1.6.2</string>
     <key>CFBundleVersion</key>
-    <string>60</string>
+    <string>62</string>
     <key>LSUIElement</key>
     <true/>
     <key>NSHighResolutionCapable</key>