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Sahilb315
4b2a25a378
Address review findings on the system-install PR: - cloud_sink: honor SUDO_USER for audit attribution only when euid==0. Without the gate any user could set SUDO_USER and spoof cloud-audit attribution to another account. Matches the guard in cmd/setup/cert.go. - config: divert per-user paths to root's passwd home only on an actual sudo elevation (euid==0 && SUDO_USER set), not for every root euid. The blanket root diversion ignored HOME/XDG_CONFIG_HOME and silently stopped reading genuine root users' config (golden Docker images), regressing two tests that only fail when the suite runs as root. Genuine root honors the environment as before; su without - leaves no marker and stays a documented, loud-failing residual. - doctor: add a system-only check re-validating that the binary the installed shims exec is still root-owned and non-writable, catching permission/ownership drift after install. - shim: fold the duplicated shim-scan loop into firstShimContent.