fix(f6.1): resolve temporal operator from area relation history

api-v3/src/asset-master/asset-temporal.service.ts

@@ -137,21 +137,41 @@ export class AssetTemporalService {
     if (!row) throw temporalAssetNotFound();
     const asOf = new Date(query.at);
     row.asOf = asOf;
+
+    // Physical context is reconstructed from the Inventory history, while the
+    // operator is resolved independently from the temporal Area↔Empresa ledger.
+    // This keeps historical operator changes from rewriting the Inventory.
     const [context] = (await this.dataSource.query(`
       SELECT
         CASE WHEN parent.id IS NULL THEN NULL ELSE JSONB_BUILD_OBJECT('id',parent.id,'code',parent.code,'name',parent.name) END AS parent,
         CASE WHEN area.id IS NULL THEN NULL ELSE JSONB_BUILD_OBJECT('id',area.id,'code',area.code,'name',area.name) END AS "operationalArea",
-        CASE WHEN company.id IS NULL THEN NULL ELSE JSONB_BUILD_OBJECT('id',company.id,'code',company.code,'name',company.name) END AS "operatorCompany"
+        CASE WHEN operator_company.id IS NULL THEN NULL ELSE JSONB_BUILD_OBJECT(
+          'id',operator_company.id,'code',operator_company.code,'name',operator_company.name
+        ) END AS "operatorCompany"
       FROM asset_context_history history
       LEFT JOIN assets parent ON parent.id=history.parent_id
       LEFT JOIN assets area ON area.id=history.operational_area_id
-      LEFT JOIN assets company ON company.id=history.operator_company_id
+      LEFT JOIN LATERAL (
+        SELECT relation.company_id
+        FROM area_company_relations relation
+        WHERE relation.area_id=history.operational_area_id
+          AND relation.relation_role='OPERATOR'
+          AND relation.valid_from <= $2
+          AND (relation.valid_until IS NULL OR relation.valid_until > $2)
+        ORDER BY relation.valid_from DESC, relation.created_at DESC, relation.id DESC
+        LIMIT 1
+      ) operator_relation ON true
+      LEFT JOIN assets operator_company ON operator_company.id=operator_relation.company_id
       WHERE history.asset_id=$1
         AND history.valid_from <= $2
         AND (history.valid_until IS NULL OR history.valid_until > $2)
       ORDER BY history.valid_from DESC
       LIMIT 1
-    `, [assetId, asOf])) as Array<{ parent: Record<string, unknown> | null; operationalArea: Record<string, unknown> | null; operatorCompany: Record<string, unknown> | null }>;
+    `, [assetId, asOf])) as Array<{
+      parent: Record<string, unknown> | null;
+      operationalArea: Record<string, unknown> | null;
+      operatorCompany: Record<string, unknown> | null;
+    }>;
     if (context && row.snapshot) {
       row.snapshot = {
         ...row.snapshot,