feat: campo RETHUS con validación manual desde el admin

- Prisma schema: rethus_code y rethus_validated en tabla professionals
- Migración 0001: ALTER TABLE agrega ambas columnas
- DTO: rethus_code y rethus_validated en CreateProfessionalDto y UpdateProfessionalDto
- Service: nuevo método validateRethus, rethus_code incluido en requestProfessional
- Controller: endpoint POST /professionals/:id/validate-rethus (JWT protegido)
- Admin listado pendientes: columna RETHUS con ícono verde/amarillo y enlace al detalle
- Admin detalle profesional: card de validación RETHUS con botón consultar Minsalud y marcar como validado

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/src/professionals/dto/professional.dto.ts

@@ -15,6 +15,10 @@ export class CreateProfessionalDto {
   @IsString()
   additional_address?: string;
 
+  @IsOptional()
+  @IsString()
+  rethus_code?: string;
+
   @IsOptional()
   @IsString()
   identification_picture?: string;
@@ -41,6 +45,14 @@ export class UpdateProfessionalDto {
   @IsString()
   profession?: string;
 
+  @IsOptional()
+  @IsString()
+  rethus_code?: string;
+
+  @IsOptional()
+  @IsBoolean()
+  rethus_validated?: boolean;
+
   @IsOptional()
   @IsNumber()
   rate?: number;

backend/src/professionals/professionals.controller.ts

@@ -43,6 +43,13 @@ export class ProfessionalsController {
     return this.pros.deny(id);
   }
 
+  @Post(':id/validate-rethus')
+  @UseGuards(JwtAuthGuard)
+  @ApiBearerAuth()
+  validateRethus(@Param('id') id: string) {
+    return this.pros.validateRethus(id);
+  }
+
   @Get('me')
   @UseGuards(JwtAuthGuard)
   @ApiBearerAuth()

backend/src/professionals/professionals.service.ts

@@ -149,6 +149,13 @@ export class ProfessionalsService {
     return { message: 'Solicitud rechazada' };
   }
 
+  async validateRethus(id: string) {
+    const prof = await this.prisma.professionals.findUnique({ where: { id } });
+    if (!prof) throw new NotFoundException('Profesional no encontrado');
+    await this.prisma.professionals.update({ where: { id }, data: { rethus_validated: true } });
+    return { message: 'RETHUS validado correctamente' };
+  }
+
   async requestProfessional(userId: string, data: any) {
     const existing = await this.prisma.professionals.findUnique({ where: { user_id: userId } });
     if (existing) throw new BadRequestException('Ya tienes una solicitud de profesional');
@@ -161,6 +168,7 @@ export class ProfessionalsService {
         profession: data.profession,
         address: data.address,
         additional_address: data.additional_address,
+        rethus_code: data.rethus_code ?? null,
         identification_picture: data.identification_picture,
         certificate_picture: data.certificate_picture,
       },