feat: implement support chat functionality with new module, service, controller, DTOs, and schema updates.

src/support-chat/support-chat.module.ts

@@ -0,0 +1,12 @@
+import { Module } from '@nestjs/common';
+import { SupportChatController } from './support-chat.controller';
+import { SupportChatService } from './support-chat.service';
+import { PrismaModule } from '../prisma/prisma.module';
+
+@Module({
+  imports: [PrismaModule],
+  controllers: [SupportChatController],
+  providers: [SupportChatService],
+  exports: [SupportChatService],
+})
+export class SupportChatModule {}