M3 Review→Publish UI (#77): one-column flow, searchable pickers, fig/feat tags, e2e

- Review screen: slug-resolved species/wcat groupers, case-insensitive attrs,
  fig-*/feat-* tag pickers (METADATA-30/40), AI-assist labels + AI bubbles.
- App orchestrator: single writable flow store, capture→review→publish, Resume boot.
- API client (slabs.ts) mirroring live backend routes; Blob name fix.
- Playwright e2e (7 tests, hermetic mock): canvas PNG seed, client-UUID mock,
  SKU blur commit, ready-state reactive fix; expect timeout 4s, 2 workers.
- e2e green 7/7 in 6s; check_requirements + check_coverage PASS.

frontend/playwright.config.ts

@@ -6,12 +6,12 @@ import { defineConfig, devices } from '@playwright/test';
  */
 export default defineConfig({
   testDir: './tests/e2e',
-  fullyParallel: false,
+  fullyParallel: true,
   forbidOnly: !!process.env.CI,
   retries: 0,
-  workers: 1,
-  timeout: 180_000,
-  expect: { timeout: 30_000 },
+  workers: 2,
+  timeout: 30_000,
+  expect: { timeout: 4_000 },
   reporter: [['list'], ['html', { open: 'never', outputFolder: 'tests/e2e/playwright-report' }]],
   use: {
     baseURL: 'http://127.0.0.1:4173',