Driver

Cut v3.1.1 to deploy the post-v3.1.0 fixes to production (the marketing site + game at yard.apexscript.com deploy from main). Two fixes have landed on dev since v3.1.0 and need to go live.

Scope

Patch release (fixes only, no new features → PATCH bump 3.1.0 → 3.1.1):

• ci(#600): pin ossf/scorecard-action to v2.4.3 #601 — pin ossf/scorecard-action@v2.4.3 (the floating @v2 tag stopped resolving; Scorecard failed on every main push).
• fix(#602): game mobile pass + #apexyard share + loop-engineering level #603 — game (site/game.html): mobile-responsive pass so every round plays on a phone, universal via #apexyard share message, and a new capstone level "Engineer the loop".

Standard release steps: CHANGELOG ## [3.1.1] entry, bump site version strings (softwareVersion 3.1.0→3.1.1, dateModified, version link text+href, releases-shipped count 15→16; pill/range stay v3.1), release PR dev→main, tag v3.1.1 on the squash commit + ancestry guard, then /release-sync.

Acceptance Criteria

• CHANGELOG has a ## [3.1.1] entry listing ci(#600): pin ossf/scorecard-action to v2.4.3 #601 + fix(#602): game mobile pass + #apexyard share + loop-engineering level #603.
• test_site_counts.sh green (softwareVersion 3.1.1, count 16).
• Release PR merged to main, tag v3.1.1 pushed (ancestry-guarded), GitHub Release published.
• main→dev sync PR opened via /release-sync.
• Netlify publishes the game live at yard.apexscript.com/game.

Glossary