feat: add chatbot module and service

src/modules/chatbot/chatbot.controller.ts

@@ -0,0 +1,20 @@
+import { Body, Controller, Post } from '@nestjs/common';
+import { ChatbotService } from './providers/chatbot.service';
+import { Public } from '../auth/decorators/public.decorator';
+
+@Controller('chatbot')
+export class ChatbotController {
+  constructor(
+    /**
+     * Inject Chatbot Service
+     */
+    private readonly chatbotService: ChatbotService,
+  ) {}
+
+  @Post('chat')
+  //   TEMP:
+  @Public()
+  public async chat(@Body('message') message: string) {
+    return this.chatbotService.chat(message);
+  }
+}