feat: server feature level (#32178)

* feat: server feature level

* fix: correctly compute feature level

(cherry picked from commit cc1e2363651eaff63848baad2c7932923ca66554)

server/src/enum.ts

@@ -1,5 +1,6 @@
 import { WorkflowTrigger } from '@immich/plugin-sdk';
 import z from 'zod';
+import { asIntegerEnum } from 'src/utils/helpers.js';
 
 export enum AuthType {
   Password = 'password',
@@ -1325,3 +1326,15 @@ export enum SearchOrderField {
 }
 
 export const SearchOrderFieldSchema = z.enum(SearchOrderField).meta({ id: 'SearchOrderField' });
+
+export enum ServerFeatureLevel {
+  FeatureLevel = 1,
+}
+
+export const ServerFeatureLevelSchema = z
+  .enum(ServerFeatureLevel)
+  .describe('Server feature level')
+  .meta({
+    id: 'ServerFeatureLevel',
+    ...asIntegerEnum(ServerFeatureLevel),
+  });