MacOS 26: window title overlaps traffic-light buttons, and buttons are unclickable even without a title

[windtersharp]

On macOS 26, with a normal pywebview window (no frameless):

When a window title is set, the title text overlaps / obscures the native traffic-light buttons (close / minimize / zoom).
Even when no title is set, the traffic-light buttons are still not clickable.
Environment

pywebview: 6.2.1
OS: macOS 26.5.2
Python: 3.9
Backend: Cocoa (WKWebView)
Window: normal create_window(...) (no frameless)

[github-actions]

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[smparkes]

Screenshot, repro? I can't reproduce. Things are a little different between python versions (different pyobjc versions lock) and the title changes but below is 3.9 and looks fine. If the window is made small the title gets truncated and the window controls survive.