Manually mirrors the Spring Boot @Schema additions on PersonNodeDTO,
Person, and PersonUpdateDTO into the generated api.ts so the form +
gutter components compile against a finished type surface. The next
backend dev-profile run + `npm run generate:api` will regenerate the
same shape from the live OpenAPI spec.
PersonFormData gains `generation?: number | null` so PersonEditForm's
$state initialiser typechecks.
Refs #689
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
