A permit is an aggregate (row + credentials + bound plates); create/update
treat it as one unit (child sets replaced on update). GET /api/permits (any
signed-in role, for lookup); POST/PUT/DELETE + POST /:id/revoke (admin only).
Validation: maxConcurrent positive-int-or-null (unbound); a permit must have at
least one credential OR one bound plate. Revoke is the soft common case (keeps
history, barred at the barrier); DELETE hard-removes — past ledger events that
reference it are untouched (append-only audit trail, independent of this row).
Web PermitManager in the admin shell: list + add/edit (holder, car-bound toggle,
validity, credentials, plates), revoke, delete. Makes permits usable without
hand-seeding (companion to the tariff composer).
Verified via inject: validation (empty / maxConcurrent=0 -> 400), create -> 201,
operator can LIST but not write (403), update replaces child rows, revoke ->
revoked, delete -> 204 then 404 with children cleaned.
julian
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