Linux linker wrapper missing

The production ara-zigcc executable was not found. Linux NativeAOT publishing and Linux native plugins need this wrapper to enforce the glibc baseline.

#Common causes

• ARA_ZIGCC is unset or invalid and no ara-zigcc executable exists beside ara-export.

#Fixes

• Run cargo build -p ara-export --bin ara-zigcc, then set ARA_ZIGCC to that executable or place it beside ara-export.

• Run ara-export doctor --platform linux to confirm discovery.

• Code: ARA-EXP-LNX-007 (slot 8037)

• Constant: export::LNX_007

• Reported by: ara-export