feat: add verify otp endpoint

src/modules/auth/auth.controller.ts

@@ -20,7 +20,7 @@ export class AuthController {
 
   @Post('verify-otp')
   @HttpCode(200)
-  public verifyOTP(@Body() verifyOtpDto: VerifyOtpDTO) {
-    return verifyOtpDto;
+  public async verifyOTP(@Body() verifyOtpDto: VerifyOtpDTO) {
+    return await this.authService.verifyOTP(verifyOtpDto);
   }
 }