feat: capture_work — braindump → decomposed issues → filed in gitea (P4)

The last big agent capability. In the Capture screen, a rough braindump runs real
big-model decomposition into a small, estimated issue set; you review/edit the
labels and approve, and the issues are opened in gitea. This is the one place the
big model earns its keep (docs/agent-tools.md).

core (@commitea/core):
- capture-work: PROPOSE_ISSUES_TOOL + CAPTURE_SYSTEM; captureWork(complete, dump)
  forces a single structured decomposition and returns validated issues; parseCaptureArgs
  drops blank titles + invalid est/p labels. ProposedIssue / CaptureProposal.
- gitea client: createIssue({title, body?, labelIds?}) → POST /issues, normalized.

app:
- model bridge model:capture runs captureWork on the (loaded) big model.
- gitea bridge gitea:createIssues opens each approved issue with its est/* + p/*
  labels (reusing the #41 label-id resolver — zero-pollution, no invented labels).
- Capture screen: when a model is configured, "Brew tickets" runs real capture and
  "Approve all" files the set; otherwise the scripted demo interview runs. Fixed a
  race — the brew handler re-checks model status at click time so a configured
  model never falls into the scripted path before status resolves.

Verified: 108 core tests green (7 capture + createIssue added), desktop typecheck
clean, 14 fixture e2e green. Gated live e2e against gemma-4-26b: the auth braindump
→ 3 real tickets ("Resolve token refresh + session staleness" est/3d p/1, "Fix
webhook double-firing" est/2d p/2, "Write auth setup docs" est/1d p/3), reviewable
and editable; Discard so the test files nothing (createIssue POST is unit-tested).

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

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

@@ -0,0 +1,37 @@
+import { dirname, join } from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+import { _electron as electron, expect, test } from '@playwright/test'
+
+const here = dirname(fileURLToPath(import.meta.url))
+const MAIN = join(here, '..', 'out', 'main', 'index.js')
+
+// Opt-in (GITEA_LIVE=1 + COMMITEA_MODEL_LIVE=1 + a local model on :1234). Launches
+// WITHOUT COMMITEA_E2E so capture_work runs the real decomposition. It Discards at
+// the end so the run never files junk issues (the create-issue POST is unit-tested).
+test.describe('live capture_work', () => {
+  test('decomposes a braindump into a reviewable ticket set', async () => {
+    test.skip(!process.env.GITEA_LIVE || !process.env.COMMITEA_MODEL_LIVE, 'live model test — opt-in')
+    test.setTimeout(300_000)
+    const app = await electron.launch({ args: [MAIN], env: { ...process.env } })
+    const win = await app.firstWindow()
+    await win.waitForLoadState('domcontentloaded')
+    const rail = win.getByRole('navigation', { name: 'Primary' })
+
+    await rail.getByRole('button', { name: 'Capture' }).click()
+    await expect(win.getByRole('heading', { name: 'Capture' })).toBeVisible()
+    // the braindump is prefilled; run the real decomposition
+    await win.getByRole('button', { name: 'Brew tickets' }).click()
+
+    // capture_work → the review tray with a real, estimated ticket set
+    await expect(win.getByText(/tickets · ~\d+d of work/)).toBeVisible({ timeout: 240_000 })
+    await expect(win.getByRole('button', { name: 'Approve all' })).toBeVisible()
+    await win.screenshot({ path: join(here, '.artifacts', 'screens', 'live-capture.png'), fullPage: true, animations: 'disabled' })
+
+    // Discard — never file junk issues into the real repo from a test
+    await win.getByRole('button', { name: 'Discard' }).click()
+    await expect(win.getByRole('button', { name: 'Brew tickets' })).toBeVisible()
+
+    await app.close()
+  })
+})