MAJOR UPPDATE: "First Ai"

feat: add AI categorization for products and enhance user management

- Integrated AI service for category suggestions in receipt import and product management.
- Added premium subscription feature for users with corresponding API endpoints.
- Implemented admin interface for managing pending product suggestions.
- Enhanced user management to include premium status and corresponding UI updates.
- Updated database schema to support new fields for premium status and product status.

backend/src/receipt-import/receipt-import.module.ts

@@ -2,9 +2,11 @@ import { Module } from '@nestjs/common';
 import { ReceiptImportController } from './receipt-import.controller';
 import { ReceiptImportService } from './receipt-import.service';
 import { PrismaModule } from '../prisma/prisma.module';
+import { AiModule } from '../ai/ai.module';
+import { CategoriesModule } from '../categories/categories.module';
 
 @Module({
-  imports: [PrismaModule],
+  imports: [PrismaModule, AiModule, CategoriesModule],
   controllers: [ReceiptImportController],
   providers: [ReceiptImportService],
 })