Fixes Gitea #491 — CWE-117 / OFFSEC-003 regression on staging.
Staging at 8ca75765 (PR #393) diverged before the OFFSEC-003
sanitize_a2a_result wrapping landed on main. The import was present
(line 50) but the non-error return path at line 325 was raw.
Main at f99b0fdf correctly wraps:
return sanitize_a2a_result(result)
This hotfix restores the same pattern on staging. One-line fix
plus OFFSEC-003 comment matching the main branch.
Co-Authored-By: Release Manager Agent <release-manager@agents.moleculesai.app>