Bug: TUI drops MCP image output when text precedes image

What Version Of Codex Is Running?

codex-cli 0.89.0

What Subscription Do You Have?

Pro

Which Model Were You Using?

5.2-Codex (MCP tool output ordering)

What Platform Is Your Computer?

Mac Mini M4 - Darwin 25.3.0 arm64 arm

What Terminal Emulator And Version Are You Using (If Applicable)?

Terminal.app 466 (TERM_PROGRAM=Apple_Terminal), shell: /bin/zsh, TERM=xterm-256color

What Issue Are You Seeing?

The TUI only renders an MCP image output cell when the first CallToolResult.content block is an image; image blocks after text are ignored. Users see a caption/placeholder without the image output cell, which hides tool output.

What Steps Can Reproduce The Bug?

1. Run Codex TUI 0.89.0 (rust-v0.89.0 tag).
2. Trigger an MCP CallToolResult where content has a text block followed by an image block (caption then image).
3. Observe the history view.

Example generator:

• Local repro via a temporary MCP tool or injected events; can share steps on request.

What Is The Expected Behavior?

The TUI renders an image output cell whenever any image block exists, regardless of ordering.

Before/After

Before
<img width="713" height="630" alt="Image" src="https://github.com/user-attachments/assets/6a2a673b-de41-4a8b-8f55-a704b25753e3" />

After Fix #9815
<img width="976" height="899" alt="Image" src="https://github.com/user-attachments/assets/05e82217-8ea5-471e-94b1-ccf4a75f2bd9" />