feat(admin): vocabularies page for per-port pick lists

New /admin/vocabularies route + VocabulariesManager component. Catalog
at src/lib/vocabularies.ts defines 11 vocabularies grouped into
Interests / Berths / Expenses / Documents domains, each shipping with
the canonical defaults from src/lib/constants.ts (interest temps,
status-change reasons, tenure types, expense categories, document
types, plus the 5 berth-spec dropdowns).

Editor supports add / remove / reorder / inline-rename / reset-to-
defaults; only dirty cards save. Uses the existing
/api/v1/admin/settings PUT endpoint (already gated on
admin.manage_settings) so storage piggybacks on system_settings
(port_id, key) per the established pattern.

Reps need read access without holding manage_settings — added a
public-read /api/v1/vocabularies endpoint plus useVocabulary() hook
(5-minute staleTime). The admin manager invalidates the vocabularies
query on save so consumers (status-change dialog, expense form, etc.)
pick up new lists immediately.

Adds a Vocabularies card to the admin landing page.

Follow-up sweep owed: actual consumers (interest-card temperature pill,
berth-tabs select dropdowns, expense form category list, etc.) still
read from the hardcoded constants.ts arrays. Wire them through
useVocabulary in a separate pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/app/(dashboard)/[portSlug]/admin/vocabularies/page.tsx

@@ -0,0 +1,5 @@
+import { VocabulariesManager } from '@/components/admin/vocabularies/vocabularies-manager';
+
+export default function VocabulariesPage() {
+  return <VocabulariesManager />;
+}