v5.1.1-validation

What's Changed

• chore(sync): main -> develop by @github-actions[bot] in #159
• docs: update status to 5.0 line in CLAUDE.md by @Arylmera in #155
• refactor(frontend): split overview.jsx cards into routes/overview/ by @Arylmera in #161
• refactor(frontend): drop dead Live copy of ambient-canvas by @Arylmera in #162
• Release v5.1.0 by @Arylmera in #160
• chore(sync): main -> develop by @github-actions[bot] in #164
• style(live): drop dead .pr-root-scoped rules from live.css by @Arylmera in #163
• fix(frontend): mount AmbientLayer in the Live pop-out window by @Arylmera in #165
• Release v5.1.1 by @Arylmera in #166
• chore(sync): main -> develop by @github-actions[bot] in #167

Full Changelog: v5.0.1...v5.1.1-validation