feat(ui): soft frames — square lyra style with bevel frames, minimal landing

[elliotBraem]

What

Folds the retro-frames prototype's winning variant — Soft frames — into the real UI, plus two dev-experience fixes uncovered while working on it.

Soft frames visual system

• Moves from shadcn base-maia (pill) to square base-lyra: --radius is 0, so the whole rounded-* scale resolves to 0. rounded-full (avatars, dots) is the only round shape. components.json updated in both ui and plugins/auth/ui.
• 1px bevel frames as tokens in styles.css (light + dark), utilities used only inside components/ui/*: bevel-raised, bevel-pressed, bevel-sunken, bevel-window, bevel-none, bg-titlebar, transition-bevel. They compose with ring-*, so focus rings still work. Mirrored into plugins/auth/ui/src/styles.css.
• Buttons: raised bevel that presses in (:active, aria-expanded, data-pressed, active sidebar item); disabled buttons sit on the new --face surface with embossed muted text instead of opacity; new xl size and brand variant; destructive is now a tinted raised button that turns solid on hover.
• Sunken fields: inputs, textareas, selects, input groups, checkboxes, tab lists.
• Window frames: cards, dialogs, sheets, popovers, dropdowns, select menus.
• New Window / WindowTitleBar / WindowBody primitives (exported from @/components) for titled frames.
• Press feedback is the pressed bevel — no scale, no translate. Press is instant, release eases out in 120ms, named properties only.
• ui/DESIGN.md updated with the settled rules (the "in progress" section is gone).

Landing page (/)

• No app shell, signed in or not: centered title (text-4xl sm:text-5xl), the under-construction GIF (restored from 13119ad1^) with its tooltip linking to the repo, one lg button — Sign in (→ /login) or Open my node (→ /dashboard) — then the existing public footer.
• UnderConstruction reworked from the hammer tile to the GIF; Bulletin updated to match.
• plugin-chunk-laziness.spec.ts now clicks the landing button (landing-primary) instead of the removed header sign-in link.

Dev fixes (with changesets)

• every-plugin dev was broken for ui/auth/plugin UIs on Rsbuild 2.2.8: FixMfDataUriPlugin stripped the absolute node_modules prefix from every data-URI import, turning Rsbuild's dev HMR entry (@rsbuild/core/dist/client/hmr.js) into a bare specifier the exports map rejects ("Package subpath './dist/client/hmr.js' is not defined by exports"). It now only rewrites @module-federation/* imports. Plain pnpm run dev works again, with hot reload — no BOS_NO_WATCH=1 workaround. Unit test added.
• Build errors were invisible in bos dev: Rsbuild prints error Build error: on stderr and the details on stdout; the log pipeline dropped the details at the default warn level. Detail lines are now joined onto the header as one error event, and bundler × lines count as errors on any stream. The CLI also stops printing "Unknown error" for Effect tagged errors (ArtifactGenError etc.) — a new describeError helper surfaces tag, phase and cause. Tests added.

Docs

• ADR 0027 (every app is a node) and the Nodes section of GLOSSARY.md (previously uncommitted working-tree changes).

Verification

• bos typecheck — all 10 workspaces pass
• pnpm run lint (Biome + oxlint/shadcn rules) — clean, no new warnings
• pnpm --filter ui test — 135 passed
• packages/every-plugin + packages/everything-dev unit suites — pass
• pnpm run build ui — green, bevel utilities verified in emitted CSS

Notes for review

• The prototype itself (/prototype/retro-frames, variant switcher) lived on this branch during development (be3ba651) and was removed before merge; the shipped result is Soft frames only.
• Intentionally not in this PR (from the redesign plan): login window redesign, sidebar switchers, orgs → settings move, My node page, Registry UI. Those are follow-up tickets.