* fix(file-safety): extend sandbox-mirror guard to cover inner-container path (#32049)
Brian's shape-based guard (#32213) catches paths that still carry the
full sandboxes/<backend>/<task>/home/.hermes/… prefix on the host side.
The inner-container case is not covered: when file tools execute inside
Docker the bind-mount strips that prefix, so the guard receives plain
/root/.hermes/… and passes through. The root:root ownership on the
divergent SOUL.md in #32049 confirms this is the primary failure mode.
Add a ContextVar (_CONTAINER_HERMES_MIRROR) set by DockerEnvironment
when persistent=True. classify_container_mirror_target / get_container_
mirror_warning detect any write whose resolved path falls under that
prefix, using the same warning format and cross_profile=True bypass
contract as the existing guards. Chain the new guard in
_check_cross_profile_path after the two existing detectors.
* fix(file-safety): derive Docker mirror guard from task
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Co-authored-by: Ben <ben@nousresearch.com>
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