Andrew Wilkes 682f57254f Persist generated images through turn executors (#39072) ...

## Why

Image generation did not save its result when the extension host did not provide a host-local save root.

## What changed

- Save generated images under the turn environment's `generated_images` directory through its sandboxed filesystem executor when no host save root is configured.
- Limit executor-written images to 32 MiB, reject symlinked output directories and existing destinations, and continue returning the image if persistence fails.
- Include the saved workspace path in the tool output hint while preserving host-managed persistence when a save root is available.

## Testing

- Extend the granted-turn-permissions integration test to verify the image and path hint are written to the turn workspace without creating a host-local artifact.

GitOrigin-RevId: 3d24381a75fe4595641b5250e19fac8ed473b2cd

2026-08-17 20:32:41 +00:00

..

src

Persist generated images through turn executors (#39072)

2026-08-17 20:32:41 +00:00

BUILD.bazel

build: run buildifier from just fmt (#28125)

2026-06-13 21:43:39 -07:00

Cargo.toml

core: support extension-owned turn items (#31283)

2026-07-08 03:55:13 +00:00

imagegen_description.md

Allow more time for image generation in code mode (#33459)

2026-07-16 00:43:16 +00:00