fix: synchronize public proof with core

[parvbansal11]

Summary

• synchronize test, coverage, CI-floor, evaluator, and adapter proof with core main
• update the displayed contract and trace schema versions to 0.2
• replace superseded roadmap language with current limitations and contribution paths

No new visual components or interactions are added.

Verification

• website static integrity suite
• core proof and generated-asset synchronization
• JavaScript syntax checks
• Lighthouse 13.4.1: mobile 99/100/100/100; desktop 100/100/100/100
• browser matrix at 320, 390, 768, and 1440 px in light/dark modes
• reduced motion at mobile and desktop widths with zero running animations
• no horizontal overflow or foreign-origin requests
• ambient field remains aria-hidden, pointer-events: none, and does not intercept the setup button