feat: v0.12 Quorum and sprints

[hazeliscoding]

The v0.12 milestone from ROADMAP.md: PR Sweep adopts the Quorum Design System, and named sprints come back as a schedule that rolls over by itself. This stays a draft until the milestone's "Done when" holds.

Decisions (2026-09-29)

• Quorum, adapted. Tokens copied as-is, except text-3, which is retuned to pass AA in both themes. Fonts and icons are bundled, never loaded from a CDN, so the app still talks only to GitHub.
• The app and tray icons stay navy and gold. The in-app accent is Quorum's teal.
• Quorum's voice everywhere, release notes included: sentence case, plain words, no emoji.
• Sprints are a schedule, not a list. First sprint, length, name pattern and one-off overrides. "Current" rolls over by itself. This avoids the reason sprints were removed on 2026-08-27 ("clicks for no benefit").
• The fixture sweep moves into v0.12, so every state can be reviewed in both themes.
• Milestones renumbered: v0.13 Sprint summary, v0.14 Related work, v0.15 Release candidate.

Progress

• Roadmap, AGENTS.md and this pull request
• Fixture mode and fixtures
• Screenshot script with isolated data folders, and "before" screenshots
• Foundation: tokens, fonts, icons, check-contrast, check-assets
• Sprints core
• Shell: top bar with the sprint picker
• Board
• Settings (with Sprints) and onboarding
• Voice pass, AGENTS.md Design section, README screenshots
• Review: before and after, keyboard pass, reruns, bundle size
• Release

What changed

• Board: a health strip of counts, each with a dot and a one-line note; author and draft chips; a search field; the Sweep with CI status, a colored reason, how long, and a next-step button; dense status tables with sticky headers; empty states and loading rows.
• Top bar: the sprint picker (Sprints or Custom, arrows, Current), a freshness line, a loading bar and a plain error banner.
• Settings: cards, switches, and a Sprints card: pattern, first sprint, length, and a preview of the sprints around today where one sprint can be renamed or made longer.
• Onboarding: the Connect GitHub dialog in the same style.
• Checks: npm run check (in CI) fails on text under AA contrast in either theme, a raw color outside the tokens, a font outside the tokens, or a remote URL.
• Fixed along the way: Ctrl+R no longer blanks the window (a v0.11 bug), and the Sprints/Custom switch reads as toggle buttons to screen readers.
• Renderer size: 329 KB in v0.11, 987 KB now. Fonts are 571 KB of that, and 306 KB are .woff fallbacks Chromium never loads; dropping them is on the Later list.

Before and after

Every fixture state, shot with node e2e/screenshot.mjs --fixtures. The images live on the pr-assets branch, which is never merged.

Light theme (14 states)

State	Before (v0.11)	After
busy
busy-snoozed
busy-quiet
busy-filtered
settings
settings-setup	new in v0.12
calm
empty
error
loading
onboarding
onboarding-token	new in v0.12
update-downloading
update-ready

Dark theme (14 states)

State	Before (v0.11)	After
busy
busy-snoozed
busy-quiet
busy-filtered
settings
settings-setup	new in v0.12
calm
empty
error
loading
onboarding
onboarding-token	new in v0.12
update-downloading
update-ready

Testing

Build, unit tests and design checks

npm install
npm run setup
npm run build
npm test
npm run check

• Nine … pass lines, including fixture, sprints and checks.
• npm run check ends with contrast: 63 pairs pass AA in both themes and assets: no remote URLs, stray fonts or raw colors.

Fixture screenshots (no token, no network)

cd desktop
node e2e/screenshot.mjs --fixtures

• Every state prints and desktop/e2e/shots/ holds 28 images.
• Your real data folder is untouched: every run uses a throwaway --user-data-dir and stops if the app doesn't use it.
• To look around by hand: $env:PRSWEEP_FIXTURE = 'busy'; npm run dev from the repo root shows the acme board without signing in. It reads your normal config but never writes a snapshot or a token. Settings you change while it runs are saved, so change them only in a throwaway profile.

On your own account (classic token)

Run npm run dev, or package with npm run package:win and install. Sign in with a classic personal access token (repo, read:org).

• Existing setup still works. Your profile opens on the same custom date range as in v0.11, with the same PRs. The top bar shows From and To, and a Set up sprints link.
• Set up sprints. Click the link. Settings scrolls to the Sprints card with the pattern field focused. Set the first sprint's start and the length: the preview updates as you go and nothing is saved yet. Click Use this schedule: the top bar now shows the current sprint, and the board sweeps it.
• Browse sprints. The arrows step to the previous and next sprint, Current comes back to today's, and a pinned sprint is still pinned after a restart.
• One-off changes. In the preview, rename a sprint and make one longer. The dates of the sprints after it move, and the top bar follows. Clearing a name brings back the pattern's name.
• Roll over. Set the first sprint to start so that the current one ends today. Tomorrow the board opens on the next sprint by itself. (Or set your clock forward a day.)
• Clear schedule returns to the custom range.
• Keyboard. Tab runs top bar, filters, Sweep rows (title, next step, snooze), then the status rows, and every stop shows a focus ring. Enter or Space on a status row opens the PR.
• Reload. Ctrl+R reloads the board instead of leaving a blank window.
• Both themes. The moon or sun button in the top bar switches, and every screen stays readable.
• Tray. The tray menu's attention count matches the Sweep count, drops when you snooze a row, and ignores quiet rows.