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

server/api/admin/hunt/[huntId]/index.get.ts

@@ -5,12 +5,6 @@ import { sendJson } from '~~/server/utils/json';
 export default defineEventHandler(async (event) => {
   const user = await requireUserSession(event);
 
-  if (user.user.role !== 'ADMIN') {
-    throw createError({
-      status: 403,
-      statusText: 'Not allowed!'
-    });
-  }
   const userId = user.user.id;
   const { huntId } = await useValidatedParams(
     event,
@@ -22,18 +16,11 @@ export default defineEventHandler(async (event) => {
   const hunt = await prisma.hunt.findUnique({
     where: {
       id: huntId,
-      OR: [
-        {
-          creatorId: userId
-        },
-        {
-          members: {
-            some: {
-              memberId: userId
-            }
-          }
+      members: {
+        some: {
+          memberId: userId
         }
-      ]
+      }
     },
     select: {
       id: true,