## Summary
Adds a `not_doable` status to integration requests for cases we've
reviewed but can't implement (e.g. no public API).
- **Applied with a comment** — the `integration-requests:review` command
now offers a `not doable` choice that requires a comment explaining why.
The comment is stored on the request and shown to users.
- **Shown at the end** — not-doable requests stay visible to everyone
but sink to the bottom of the board regardless of their votes, with the
comment rendered below the name.
- **Not votable** — voting is blocked both in the UI (disabled button)
and the backend (404), even for the author.
- **Rejected stays hidden** — rejected requests never appear in the list
(unchanged behaviour, now covered by a test).
## Changes
- `IntegrationRequestStatus` enum: new `NotDoable` case + label.
- Migration: nullable `comment` text column on `integration_requests`.
- `IntegrationRequestController`: list includes not-doable for everyone,
ordered last; vote guard rejects not-doable.
- `ReviewIntegrationRequestsCommand`: `not doable` option with a
required comment prompt.
- Board component: not-doable badge, comment, disabled voting.
- Factory `notDoable()` state, `es.json` translation, feature tests.
## Testing
- `php artisan test tests/Feature/IntegrationRequestTest.php` — 21
passed
- `vendor/bin/pint --dirty`, `bun run format`, `bun run lint` — clean
801f6c7cd4