fix(F6.1): resolve operators at planned inspection date

api-v3/src/inspection-visits/inspection-planning-hierarchy.service.ts

@@ -62,6 +62,35 @@ export class InspectionPlanningHierarchyService {
     return { data };
   }
 
+  async operatorsForArea(
+    areaId: string,
+    at?: string,
+  ): Promise<{ data: InspectionPlanningHierarchyItem[] }> {
+    await this.requireType(areaId, 'area', 'El Área seleccionada no es válida');
+    const effectiveAt = at ? new Date(at) : new Date();
+    if (!Number.isFinite(effectiveAt.getTime())) {
+      throw new BadRequestException({
+        code: 'INSPECTION_PLANNING_DATE_INVALID',
+        message: 'La fecha de planificación no es válida',
+      });
+    }
+    const data = await this.dataSource.query(`
+      SELECT DISTINCT company.id, company.code, company.name
+      FROM area_company_relations relation
+      INNER JOIN assets company ON company.id=relation.company_id
+      INNER JOIN asset_types type ON type.id=company.asset_type_id
+      WHERE relation.area_id=$1::uuid
+        AND relation.relation_role='OPERATOR'
+        AND relation.valid_from <= $2::timestamptz
+        AND (relation.valid_until IS NULL OR relation.valid_until > $2::timestamptz)
+        AND type.operational_role='COMPANY'
+        AND type.is_active=true
+        AND company.information_status<>'INACTIVE'
+      ORDER BY company.name, company.code
+    `, [areaId, effectiveAt]) as InspectionPlanningHierarchyItem[];
+    return { data };
+  }
+
   private async requireType(id: string, typeCode: string, message: string): Promise<void> {
     const [row] = await this.dataSource.query(`
       SELECT 1