The frame-paced-sleep slice did NOT make the opening burst animate (only the
one-shot dramatic pauses). Correct the canonical result (phase-a-slice-plan),
the RE doc (engine-re), the opcode source+generated ref (opcodes.toml 0xc8),
and add correction banners to the point-in-time spec/plan. Also folds in the
diagnostics + headless halt-at-wait results into phase-a-slice-plan.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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