**Summary**
- Backtrack selection now rehydrates `text_elements` and
`local_image_paths` from the chosen user history cell so Esc‑Esc history
edits preserve image placeholders and attachments.
- Composer prefill uses the preserved elements/attachments in both `tui`
and `tui2`.
- Extended backtrack selection tests to cover image placeholder elements
and local image paths.
**Changes**
- `tui/src/app_backtrack.rs`: Backtrack selection now carries text
elements + local image paths; composer prefill uses them (removes TODO).
- `tui2/src/app_backtrack.rs`: Same as above.
- `tui/src/app.rs`: Updated backtrack test to assert restored
elements/paths.
- `tui2/src/app.rs`: Same test updates.
### The original scope of this PR (threading text elements and image
attachments through the codex harness thoroughly/persistently) was
broken into the following PRs other than this one:
The diff of this PR was reduced by changing types in a starter PR:
https://github.com/openai/codex/pull/9235
Then text element metadata was added to protocol, app server, and core
in this PR: https://github.com/openai/codex/pull/9331
Then the end-to-end flow was completed by wiring TUI/TUI2 input,
history, and restore behavior in
https://github.com/openai/codex/pull/9393
Prompt expansion was supported in this PR:
https://github.com/openai/codex/pull/9518
TextElement optional placeholder field was protected in
https://github.com/openai/codex/pull/9545
charley-oai
935d88b455