feat: Synchronize agent phone numbers between profile and field values, and add optional service areas to agent profile DTO.

src/agents/dto/create-agent-profile.dto.ts

@@ -1,4 +1,5 @@
 import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
+import { Transform } from 'class-transformer';
 import {
   IsString,
   IsOptional,
@@ -6,10 +7,12 @@ import {
   IsUrl,
   IsUUID,
   IsBoolean,
+  IsArray,
   MinLength,
   MaxLength,
   Min,
   Max,
+  ValidateIf,
 } from 'class-validator';
 
 export class CreateAgentProfileDto {
@@ -33,11 +36,13 @@ export class CreateAgentProfileDto {
   @MaxLength(100)
   lastName: string;
 
-  @ApiPropertyOptional({ example: '+1234567890' })
+  @ApiPropertyOptional({ example: '+1234567890', nullable: true })
   @IsOptional()
+  @ValidateIf((o) => o.phone !== null)
   @IsString()
   @MaxLength(20)
-  phone?: string;
+  @Transform(({ value }) => (value === '' ? null : value))
+  phone?: string | null;
 
   @ApiPropertyOptional({ example: 'Experienced real estate agent...' })
   @IsOptional()
@@ -140,4 +145,13 @@ export class CreateAgentProfileDto {
   @IsOptional()
   @IsBoolean()
   isAvailable?: boolean;
+
+  @ApiPropertyOptional({
+    example: ['Los Angeles', 'San Francisco'],
+    description: 'Service areas the agent covers',
+  })
+  @IsOptional()
+  @IsArray()
+  @IsString({ each: true })
+  serviceAreas?: string[];
 }