feat(store): separate login phone from public contactPhone

Store.phone stays login/boss; contactPhone is C-end dial. Public store APIs keep phone compat via publicDial mapping.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/dukang-api/src/modules/ops/dto/admin-mutate.dto.ts

@@ -38,6 +38,11 @@ export class CreateStoreDto {
   @IsNotEmpty()
   phone: string;
 
+  /** 对外联系电话（店长）；不传则默认与登录手机号相同 */
+  @IsOptional()
+  @IsString()
+  contactPhone?: string;
+
   @IsString()
   @IsNotEmpty()
   categoryId: string;
@@ -162,6 +167,11 @@ export class UpdateStoreDto {
   @IsString()
   phone?: string;
 
+  /** 对外联系电话（店长） */
+  @IsOptional()
+  @IsString()
+  contactPhone?: string;
+
   @IsOptional()
   @IsString()
   intro?: string;