Harry Bayliss
cb3e51d568
Codex (and other ratatui-based children) pushes kitty keyboard flags onto the host terminal, so Ctrl-K arrives as `\x1b[107;5u` instead of 0x0B and the palette open never fired. With "report event types" also on, the release event `\x1b[107;5:3u` followed the press and tripped the palette's "unknown ESC sequence → cancel" branch, making the palette flash and close. Add a small CSI scanner / kitty CSI u decoder and use them in two places: matchCtrlK now accepts the legacy byte, the kitty CSI u form, and xterm modifyOtherKeys; the palette's input handler consumes whole CSI sequences, ignores non-press events, and decodes Enter/Esc/ Backspace/arrows/Ctrl-U-N-P in their kitty forms. Ctrl-K Ctrl-K forwards the raw matched bytes so nested TUIs that asked for kitty input still receive kitty input.