Reece Browne 22ec0947c9 Storybook coverage: scan harness + stories (#7073)
## What

Gets most of the app's components into Storybook and adds a scan that
runs every story in a real browser, so we have a base to build
accessibility testing on next.

- **~380 new stories**, taking story files from 144 to 526. Components
with a story:

  | Layer | Before | After |
  |---|---|---|
  | core | 41 / 309 (13%) | **183 / 309 (59%)** |
  | portal | 91 / 161 (57%) | **127 / 161 (79%)** |
  | proprietary | 1 / 105 (1%) | **39 / 105 (37%)** |
| cloud / desktop / saas / portal-saas / prototypes | 0 / 84 | 0 / 84
(unchanged) |
  | **Total** | **133 / 659 (20%)** | **349 / 659 (53%)** |

Both columns are counted the same way — every `.tsx` exporting a
component, so the denominator includes things that aren't really visual
units (contexts, providers, barrels). Excluding those it's 22% → 58%.
Either way it's reproducible from the tree rather than a number you have
to take on trust.

- **Scan harness** — the Storybook Vitest addon runs each story in
headless Chromium as a **render/smoke check** (a story must mount
without throwing). New task: `task frontend:storybook:test` (pass a
filter, e.g. `-- Button`). Separate Vitest config so it doesn't touch
the existing jsdom unit tests.

## Scope

- **Stories and Storybook config only, with one exception:** a one-line
fix to `ProviderCard`, which re-rendered forever whenever its optional
`settings` prop was omitted. Called out because it's the only component
source change here.
- The preview gains a `QueryClientProvider` (the portal app has one, so
stories reaching a query hook threw without it), and the scan task now
installs the browser it drives.
- **a11y is report-only** and **nothing runs the scan in CI yet** —
enforcing a11y and wiring it into CI is the follow-up, #7086.
- Components that can't render as an isolated unit are **not** included:
anything needing the full editor runtime (ToolWorkflow / FileManager /
AppConfig / a live PDF engine) or that's headless (providers, gates, API
bridges, config factories). Stories that only rendered by mounting the
whole `AppProviders` tree were dropped for the same reason — that isn't
isolation, and the tree's ErrorBoundary swallowed render failures so
those stories could never fail. A few that need assets the headless
browser can't serve are tagged `!test`, so they still show in the UI but
sit out the scan.

## Testing

Typecheck (all build variants), ESLint, Prettier and the unit suite
pass. Every story in the scanned set mounts without throwing.

## Notes for reviewers

- Stories use the `@app`/`@core`/`@portal`/`@proprietary` aliases (no
deep relative imports) and mock data-fetching components with MSW.
- Running the full suite in one go can flake on the Vite dep-optimizer;
scan in small batches (or by filter) for a stable local run.
2026-07-28 16:06:06 +00:00
2026-07-24 09:37:10 +00:00
2026-07-23 08:29:06 +00:00
2026-07-11 12:48:53 +01:00
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2026-07-17 10:16:06 +00:00
2026-03-25 11:00:40 +00:00

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