feat: add email to notification and otp

apps/edr-freight-api/src/modules/notifications/dtos/email.dto.ts

@@ -0,0 +1,30 @@
+import { ApiProperty, ApiPropertyOptional } from "@nestjs/swagger";
+import { IsEmail, IsNotEmpty, IsOptional, IsString } from "class-validator";
+
+export class SendEmailDto {
+  @ApiProperty({
+    description: "Recipient email address",
+    example: "customer@example.com",
+  })
+  @IsEmail()
+  @IsNotEmpty()
+  to!: string;
+
+  @ApiProperty({
+    description: "Email subject",
+    example: "Your EDR Freight verification code",
+  })
+  @IsString()
+  @IsNotEmpty()
+  subject!: string;
+
+  @ApiPropertyOptional()
+  @IsOptional()
+  @IsString()
+  text?: string;
+
+  @ApiPropertyOptional()
+  @IsOptional()
+  @IsString()
+  html?: string;
+}