Shift+Enter and Alt+Enter no longer insert newlines in Konsole

After updating to codex-cli 0.128.0, Shift+Enter and Alt+Enter no longer insert a newline in the Codex CLI prompt when running in Konsole on KDE Plasma / Arch Linux.

This worked before a recent Codex update. Ctrl+J still works, but it is awkward as the only multiline input shortcut.

Environment:

• Codex CLI: codex-cli 0.128.0
• OS: CachyOS x86_64
• Kernel: Linux 7.0.3-1-cachyos
• Shell: fish 4.7.0
• Desktop: KDE Plasma 6.6.4
• Window manager/session: KWin on Wayland
• Terminal: Konsole 26.4.0
• Locale: en_US.UTF-8

Observed behavior:

• Ctrl+J inserts a newline.
• Shift+Enter no longer inserts a newline.
• Alt+Enter no longer inserts a newline.

Expected behavior:

• Shift+Enter and/or Alt+Enter should insert a newline in the prompt, as before.

Terminal key sequences from showkey -a:

Ctrl+J:
^J       10 0012 0x0a

Shift+Enter:
^[OM     27 0033 0x1b
         79 0117 0x4f
         77 0115 0x4d

Alt+Enter:
^[^M     27 0033 0x1b
         13 0015 0x0d

It looks like Codex still handles literal LF from Ctrl+J, but may have stopped mapping the Konsole Shift+Enter / Alt+Enter escape sequences to prompt newlines.