Why

The desktop app could not be rebuilt: tsc -b failed with 22 errors because the sidebar consolidation landed components importing stores that never landed (@/store/cron, layout drag-order/cron-open/overlay atoms, session yolo-default + presence exports, en/zh handoffOrigin). Since npm run build gates on tsc, dist/ was frozen at a pre-consolidation bundle — the packaged app still showed line-2 source labels ("Terminal") and per-device group headers, which the operator flagged as UI bugs. They were stale-build artifacts. This PR makes the app buildable again and applies the requested row design: flat single-line rows, relative timestamp on idle rows, pulsing orange dot (timestamp hidden) on active rows.

What changed

• store/layout.ts: restore $sidebarOverlayMounted, persisted session/workspace drag-order atoms, $sidebarCronOpen + setters, using the original storage keys (hermes.desktop.sessionOrder etc.) so existing prefs survive.
• store/session.ts: restore DEFAULT_DESKTOP_YOLO_ACTIVE / $desktopYoloDefault / setDesktopYoloDefaultActive (yolo-default-on feature) and $sessionPresence / setSessionPresence.
• store/cron.ts (new): $cronJobs + refreshCronJobs() sidebar projection; refreshed on gateway-open.
• chat/sidebar/cron-jobs-section.tsx (new): collapsible Cron jobs section (hover actions: play = trigger now, gear = manage) reusing existing t.cron strings — no new i18n keys.
• desktop-controller.tsx: drop extraneous onArchiveAllSessions, wire onManageCronJob/onTriggerCronJob, refresh cron jobs on gateway open.
• virtual-session-list.tsx: remove dead showSourceBadge/showDeviceBadge plumbing (rows are single-line by design).
• session-row.tsx: active rows pulse an orange dot and hide the relative timestamp; idle rows keep the static grey dot + age.
• i18n/en.ts, i18n/zh.ts: add missing sidebar.row.handoffOrigin (ja/zh-hant already had it).

How to review

1. Diff store/layout.ts / store/session.ts against the originals (3fc67b733, db0661401) — they are restorations, not new designs.
2. store/cron.ts + cron-jobs-section.tsx are the only new surface; check the section renders nothing when $cronJobs is empty.
3. session-row.tsx for the active-state UX change.
4. Run npx tsc -b --force (0 errors) and npm run build in apps/desktop.

Evidence

• tsc -b --force: 22 errors on main → 0 on this branch.
• npm run build (previously impossible): succeeds, fresh dist/ bundle.
• vitest src suite: 447 passed, 0 src failures (the 9 remaining failed files are node:test .cjs suites that vitest cannot host; under their own runner npm run test:desktop:platforms: 85 pass / 0 fail — pre-existing harness split).
• yolo-session.test.ts passes again with the restored exports.

Verification

• apps/desktop: npx tsc -b --force clean; npx vitest run --environment jsdom 447 passed; npm run test:desktop:platforms 85/0; npm run build green.
• Not run: packaged-app smoke (npm run dist:mac) — operator's running app picks the rebuilt bundle on next restart; low risk since renderer-only changes.

Risks / gaps

• $sidebarOverlayMounted currently has no writer (the hover-peek feature that sets it never landed) — defaults false so behavior matches today; low risk.
• onManageCronJob navigates to the cron page without deep-linking the specific job — accepted scope, the cron page lists all jobs.
• Sidebar cron section shows nothing until cron.list RPC succeeds once — no work item needed, hidden-by-default is the intended empty state.
• Orange active-dot uses a fixed Tailwind orange rather than a theme token — accepted tradeoff per operator's explicit "glowing orange" spec.

Collaborators

• @OmarB97 (operator)
• Claude Fable 5 (Claude Code)