Runs validation builds for the primary prompt on every new feature page
(all pass lint/validate/render) and applies the fixes they surfaced:
lower-third exit-length note, block-adaptation framing on the anatomy
technique slot, code-typing per-character wording, caption-component
demo-content note, map determinism/merge-at-source notes, device-mockup
demo-UI expectation, variables img clarification. Embeds 29 unedited
renders next to their prompts (HeyGenVerse-hosted), including a
default-vs-overridden pair demonstrating variables.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>