std_dup 3-module unlock: the curated seed-link probe harness reds E0255 Witness duplicate (std_dup) on 01_tokenize, 04_infer, program_partition — the dual-std-tree basename homonym class (dag/std vs src/v2/std). Fix pattern = per-module authority (the Nat precedent, #6834); extend it or dedup the ha - #6876