A single staging input was too weak a counterweight to the model's
habitual page skeleton: beside six identity challengers it read as one
optional flourish rather than a real search over composition. Roll three
from distinct staging families so a roll tests materially different
hierarchy, sequence, and interaction laws.
selectApprovedStagings replaces the single-pick selector; the old
selectApprovedStaging stays as a count-1 wrapper for smoke tests. Re-rolls
exclude every earlier set, and an absent mode still returns nothing rather
than falling back across modes.
Co-Authored-By: Claude <noreply@anthropic.com>
Paul BakausandClaude
b1735015a9