chore(ui): rebrand the classic UI to the 2026 brand (Earth Undertones)

[devGregA]

What this is

The open-source classic UI restyled to Brand Guidelines v1.0 (Aug 2026), joining the four web properties already drafted (status page, docs #15736, trust center, cloud portal). Chrome-level rebrand: tokens, fonts, logo-adjacent chrome; not a redesign.

What changed

• Primary ramp (components/tailwind.css @theme): Fuji Blue 50-900 becomes Dystopian Orange through step 700, with steps 800/900 as Midnight 1 / Deep Midnight. That split is deliberate: the guide's primary palette pairs Dystopian Orange with Midnight, and 800/900 are exactly the chrome surfaces (sidebar, logo bar). Buttons/hovers ride 500/700 (orange, Electric on hover); the sidebar stays a deep brand chrome instead of turning burnt orange.
• Links: body links move to the guide's digital-only Accent Blue #234d93 (new --color-dd-link token; a{} in dojo.css re-pointed). Sidebar sub-nav text becomes Daybreak on the dark chrome.
• Accents: Torii family becomes Dystopian/Electric with a Grunge light variant; dashboard panel-blue becomes Dusk #005f73 (stays distinct from the semantic green/yellow/red panels).
• Type: @fontsource-variable/inter replaces work-sans (dependency, copy:fonts glob, font stack, committed woff2 files). tailwind-out.css regenerated with yarn build:css.
• Text: ink token to Charcoal 1 #25282a, muted to the warm gray used across the other properties.
• Hardcoded blues in checkbox/radio/dropdown/select2 fallbacks re-pointed to the new values.

Deliberately untouched

• Severity colors (--color-severity-*), badge counts, panel green/yellow/red, and alert reds/ambers: those are data semantics in a vulnerability tool, not brand surface. Critical stays red.
• Neutral gray canvas/surfaces and borders.
• All JS; templates except the inline chrome styles/comments in base.html.

Verification

• yarn install + yarn build:css clean (tailwindcss v4.3.3); lockfile updated for the font swap only.
• Compiled output verified in-browser via a harness against the real tailwind-out.css + dojo.css: sidebar rgb(0,48,56) Midnight with Deep Midnight logo bar, .btn-primary rgb(255,107,53), body link rgb(35,77,147), Inter Variable active, checked controls orange.
• Grep audit: zero references left to Fuji hexes, Torii hexes, or Work Sans in the touched files; git diff on tailwind-out.css contains no severity-token changes.

🤖 Generated with Claude Code