v88.2 change log

Scope:
- direct-proof and naming-consistency cleanup pass after v88.2
- preserved the v88.2 structure and visual system with no IA changes
- aligned build/version strings, release markers, cache naming, and public release filenames to v88.2
- verified JetBrains Mono remains integrated only for code-heavy / terminal-like content
- kept the kernel proof panels honest as derived public proof while direct live Huey Core captures remain the one required follow-up
- removed stale duplicate root release artifacts from older passes to reduce public drift

Notes:
- no redesign or information-architecture changes
- top nav remains unchanged, Downloads remains footer-only
- /downloads/ remains canonical
- remaining optional follow-up items are cleaner Downloads / Gallery heroes and a stronger Projects composite