Header brand: kill amber dash, stronger wordmark

[makefunstuff]

Summary

Follow-up to the header redesign. Juri still saw an amber dash between jev-lsp and WIP (meh). This hard-kills any brand tick/separator and makes the mark read as wordmark + quiet chip — not name · dash · badge.

Changes (site/styles.css only)

• Explicitly neutralize ::before / ::after on .brand, .wordmark, and .wip (no accent bar can return)
• Wordmark: 800 / 1.15rem, no underline/decoration bleed from global a styles
• WIP: quieter border (--line), slightly smaller type, no accent affordance
• Brand gap only — no separator glyph or bar between mark and chip

Note

Live Pages may have been caching; main already lacked the old .wordmark::after paint rule, but the brand still needed a stronger “no chrome” guarantee + hierarchy bump.

Test plan

• Hard-refresh https://makefunstuff.github.io/jev-lsp/ after merge — no amber dash/bar between wordmark and WIP
• Wordmark clearly heavier than nav; WIP reads as a quiet sibling chip
• Hover/focus on wordmark: no amber underline flash

Do not merge until reviewed.