Replaces x_fc_wo_group_tag grouping with resolved-recipe grouping.
Bare WO-<parent> when 1 recipe, WO-<parent>-NN zero-padded for N>1
ordered by min line sequence. fp.job inherits parent-numbered mixin
for the manual-add path; bulk SO-confirm sets names explicitly.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>