Phase B: real data for the last fixture screens

Every remaining fixture-only surface now renders reconciled gitea data,
with the fixture kept only as the no-config demo fallback.

- lib/views/project-data.ts: ProjectData — the uniform input (reconciled
  backlog + deps + timelines + calibration + workers + today) that AppShell
  assembles once and every view builder consumes.
- lib/views/{issue-detail,gantt-view,deps-graph,standup-view,inbox-view}.ts:
  pure builders, ProjectData → the fixture-shaped object each screen already
  renders. Real signals only; honest degradation where a signal isn't derivable
  (buffered p80 vs per-issue Monte Carlo; flat "idle in review"; no fabricated
  inbox mentions/outages).
- Screens take an optional `data?` and fall back to the fixture; AppShell wires
  the real view whenever the backlog is reconciled. Issue "blocks" chips and the
  rail inbox badge now resolve from real data too.
- Dev-only rail surfaces (First run / States / Primitives) gated on
  import.meta.env.DEV || demo — shown in dev + e2e, hidden in a packaged app.
  Rail host label reflects the connected instance.
- Extended the live onboarding e2e to click Board → Gantt → Deps → Issue
  sidecar → Standup → Inbox on real gitea data with a pageerror guard; 14
  fixture e2e stay green, typecheck + prod build clean.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/desktop/e2e/live-onboarding.spec.ts

@@ -38,6 +38,11 @@ test.describe('live onboarding', () => {
     const win = await app.firstWindow()
     await win.waitForLoadState('domcontentloaded')
 
+    // Any uncaught render error in a real-data view builder must fail the test —
+    // this is the "it actually works on real data" guarantee.
+    const pageErrors: string[] = []
+    win.on('pageerror', (e) => pageErrors.push(e.message))
+
     // the connection gate, not the app
     await expect(win.getByText(/Connect your Gitea/)).toBeVisible({ timeout: 15000 })
     await win.getByPlaceholder('your-org').fill('christian')
@@ -45,11 +50,35 @@ test.describe('live onboarding', () => {
     await win.getByPlaceholder(/gitea PAT/).fill(token!)
     await win.getByRole('button', { name: 'Connect' }).click()
 
-    // it validated + saved + reconciled into the real board — real issue titles prove it
     const rail = win.getByRole('navigation', { name: 'Primary' })
+    const realTitle = /Model router|SQLite cache bootstrap|Purity\/rebuild/
+
+    // Board (real reconciled columns) — real issue titles prove the sync landed.
     await rail.getByRole('button', { name: 'The pot' }).click()
-    await expect(win.getByText(/Model router|SQLite cache bootstrap|Purity\/rebuild/).first()).toBeVisible({ timeout: 30000 })
+    await expect(win.getByText(realTitle).first()).toBeVisible({ timeout: 30000 })
+
+    // Gantt tab — scheduler-derived bars over the real open backlog.
+    await win.getByRole('tab', { name: 'Gantt' }).click()
+    await expect(win.getByText(realTitle).first()).toBeVisible()
+
+    // Dependencies tab — real dep graph. Just needs to render without throwing.
+    await win.getByRole('tab', { name: 'Dependencies' }).click()
+    await win.waitForTimeout(300)
+
+    // Issue drill-in — the machine-derived sidecar (lifecycle/forecast/deps) on a real issue.
+    await win.getByRole('tab', { name: 'Board' }).click()
+    await win.getByText(realTitle).first().click()
+    await expect(win.getByText('Machine-derived')).toBeVisible()
+    await win.getByRole('button', { name: 'Back' }).click()
+
+    // Standup + Inbox — scheduler plan / nag / inbox feed over real data.
+    await rail.getByRole('button', { name: 'Standup' }).click()
+    await expect(win.getByRole('heading', { name: 'Morning standup' })).toBeVisible()
+    await rail.getByRole('button', { name: 'Inbox' }).click()
+    await expect(win.getByRole('heading', { name: 'Inbox' })).toBeVisible()
+
     await win.screenshot({ path: join(here, '.artifacts', 'screens', 'live-onboarding.png'), fullPage: true, animations: 'disabled' })
+    expect(pageErrors, `uncaught render errors: ${pageErrors.join(' · ')}`).toEqual([])
 
     await app.close()
   })