refactor(auth): simplify authorization checks to use membership only

- Remove explicit ADMIN role checks in API handlers
- Replace combined creator/member role checks with membership-only filters
- Update seed data roles to reflect changed authorization logic
- Add migration to insert hunt creators as members for consistent checks
- Prevent removal of hunt creator as a member with new explicit check
- Adjust related user role updates and queries accordingly
- Upgrade dependencies including nuxt and zod for compatibility

shared/utils/slugcheck.test.ts

@@ -1,4 +1,3 @@
-// @ts-expect-error weird bun import with nuxt
 import { describe, expect, it } from 'bun:test';
 import { checkSlug, parseSlug, type SlugRecord } from './slugcheck';