add OTP email sending functionality and integrate with user authentication flow

libs/common/src/util/email.service.ts

@@ -181,6 +181,49 @@ export class EmailService {
       );
     }
   }
+  async sendOtpEmailWithTemplate(
+    email: string,
+    emailEditData: any,
+  ): Promise<void> {
+    const isProduction = process.env.NODE_ENV === 'production';
+    const API_TOKEN = this.configService.get<string>(
+      'email-config.MAILTRAP_API_TOKEN',
+    );
+    const API_URL = isProduction
+      ? SEND_EMAIL_API_URL_PROD
+      : SEND_EMAIL_API_URL_DEV;
+    const TEMPLATE_UUID = this.configService.get<string>(
+      'email-config.MAILTRAP_SEND_OTP_TEMPLATE_UUID',
+    );
+
+    const emailData = {
+      from: {
+        email: this.smtpConfig.sender,
+      },
+      to: [
+        {
+          email: email,
+        },
+      ],
+      template_uuid: TEMPLATE_UUID,
+      template_variables: emailEditData,
+    };
+
+    try {
+      await axios.post(API_URL, emailData, {
+        headers: {
+          Authorization: `Bearer ${API_TOKEN}`,
+          'Content-Type': 'application/json',
+        },
+      });
+    } catch (error) {
+      throw new HttpException(
+        error.response?.data?.message ||
+          'Error sending email using Mailtrap template',
+        error.response?.status || HttpStatus.INTERNAL_SERVER_ERROR,
+      );
+    }
+  }
   generateUserChangesEmailBody(
     addedSpaceNames: string[],
     removedSpaceNames: string[],