feat(ui): finish the move to Geist: numbers, 13px chrome, sentence-case labels - #2565

🟢 Confidence 10/10 · safe to merge. Token and kit-style edits only, with every impacted call site read at this head and the earlier size: "lg" sidebar defect now fixed.
_{no findings · tests not needed · risk medium}

Finishes the Geist type pass: drops the global tabular-nums→mono and text-figure→sans rules, moves chrome to 13px text-ui, and takes uppercase off the eyebrow kit while migrating the call sites that relied on it. Contained to tokens, kit styles and label copy; safe to merge.

• tokens.css no longer forces font-mono on tabular-nums or font-sans on text-figure
• Kit controls move to sm:text-ui (13px); sidebar rows and breadcrumbs go to text-ui
• eyebrow overline/label become sentence case at 11px/12px; mono keeps the uppercase tag
• statFigure defaults to the display face and statRailItem.isCardTitle is gone

Fixed since the last review

• ✅ F1 · size: "lg" keeps text-xs, so the org switcher row stays 12px beside 13px rows

_{34823ad · Reply "won't fix" to dismiss a finding, or mention @maple-review-bot to ask about one.}