fix var name

apps/app/src/interfaces/ai.ts

@@ -1,5 +1,5 @@
-const AiServiceType = {
+export const aiServiceType = {
   OPEN_AI: 'openai',
 } as const;
 
-export const aiServiceTypes = Object.values(AiServiceType);
+export const aiServiceTypes = Object.values(aiServiceType);