version-history.html: velocity headline "25 days" inconsistent with days-elapsed counter "29"

[jacuzzicoding]

Context\n\nDetected by nightly doc-sync run 2026-05-09.\n\nPR #123 (merged 2026-05-09) updated public/version-history.html to reflect 16 releases and 29 days elapsed, but left the velocity banner headline unchanged:\n\nhtml\n<!-- Headline — still says 25 -->\n<div class=\"headline\">v0.1 to v0.9 in 25 days</div>\n\n<!-- Sub-headline — correctly updated -->\n<div class=\"sub\">Sixteen releases. Blathers can't keep up.</div>\n\n<!-- Stat counter — correctly updated -->\n<div class=\"num\">29</div>\n<div class=\"label\">days elapsed</div>\n\n\nThe headline and counter now disagree on the same page ("25 days" vs 29).\n\n## Why this needs a human decision\n\nThe right correction isn't obvious:\n\n- Option A — update headline to match counter: Change to "v0.1 to v0.9 in 29 days." But 29 is "days elapsed since v0.1 to today (May 9)", not how long the v0.1-to-v0.9 arc actually took. v0.9.0 shipped May 3, which is 23 days from Apr 10. Saying "29 days" is technically inaccurate as a historical claim.\n- Option B — treat headline as a fixed historical tagline: Keep "25 days" as a snapshot from when it was written (around v0.9.2 / May 5) and update only the counter going forward. But a reader seeing both numbers on the same page will be confused.\n- Option C — reword the headline to avoid a specific number: e.g. "v0.1 to v0.9, one sprint" or omit the day count from the headline entirely.\n\n## Acceptance\n\n- The headline and days-elapsed counter on public/version-history.html tell a consistent story.\n- No reader is left wondering which number is correct.\n\n## References\n\n- PR #123 — doc-sync run that updated the counter but missed the headline\n- public/version-history.html velocity banner block