From 2091b4aed0c7ea1154799e2363a24f46a8dcbffb Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Fri, 23 Jan 2026 22:44:07 +0000
Subject: [PATCH] fix(sandbox): improve docker image existence check error
 handling

- Modifies `dockerImageExists` to inspect stderr when the exit code is non-zero.
- Returns `false` only if the error explicitly indicates "No such image".
- Throws an error with the stderr content for all other failures.