can't type multiline prompts in macos terminal

Question

### What version of Codex is running?

codex-cli 0.90.0-alpha.2

### What subscription do you have?

whatever openai employees get

### Which model were you using?

irrelevant

### What platform is your computer?

Darwin 25.2.0 arm64 arm

### What terminal emulator and version are you using (if applicable)?

Terminal.app

### What issue are you seeing?

No keystroke I can find allows me to insert a line break in the prompt without sending it to codex.

### What steps can reproduce the bug?

Uplo