build_critics always sized a WGAN critic off the generator's own
hidden_dim/n_res_blocks, silently discarding the documented 0=inherit
sentinel on stage{1,2}_model.wgan.critic_hidden_dim/critic_n_res_blocks
(the same convention critic_lr already honoured). Now both keys are read
with the 0 -> inherit fallback, and stage-scoped-only CLI flags
(--stage{1,2}-critic-hidden-dim/--stage{1,2}-critic-n-res-blocks) are
added -- no shared alias, since critic sizing is an architectural
per-stage knob like --hidden-dim/--n-res-blocks, not a shared training
hyperparameter like --n-critic/--gp-weight/--noise-dim/--critic-lr.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
lars
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