feat: pestaña Stock por almacén en el lote (consulta estándar batch-stock del módulo sapdb; sin base configurada no aparece)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

apps/api/src/sapdb/sapdb-queries.ts

@@ -11,6 +11,24 @@ export const BASE_SAPDB_QUERIES: readonly SapDbQuery[] = [
     params: {},
     menu: null,
   },
+  {
+    // Tablas estándar de SAP B1 (OBTQ: cantidad por lote y almacén; OBTN: maestro de lotes; OWHS: almacenes). `absEntry` es el
+    // `DocEntry` del lote en el Service Layer.
+    name: 'batch-stock',
+    title: 'Stock de un lote por almacén',
+    sql: {
+      hana: `SELECT T1."WhsCode" AS "WarehouseCode", W."WhsName" AS "WarehouseName", T1."Quantity" AS "Quantity",
+               T1."CommitQty" AS "Committed", T1."CountQty" AS "Counted"
+        FROM "OBTQ" T1
+        INNER JOIN "OBTN" T0 ON T1."MdAbsEntry" = T0."AbsEntry" AND T1."ItemCode" = T0."ItemCode"
+        LEFT JOIN "OWHS" W ON W."WhsCode" = T1."WhsCode"
+        WHERE T0."AbsEntry" = :absEntry
+        ORDER BY T1."WhsCode"`,
+    },
+    params: { absEntry: { type: 'number' } },
+    menu: '/inventario/lotes',
+    maxRows: 1000,
+  },
 ];
 
 /** Comprueba que los nombres no se repitan, que el SQL sea de solo lectura y que use justo los parámetros declarados. Lanza si no. */

apps/api/src/sapdb/sapdb.service.spec.ts

@@ -79,6 +79,9 @@ describe('SapDbService', () => {
   });
 
   it('lista las consultas disponibles', async () => {
-    expect(await make({ query } as SapDbAdapter).available(user)).toEqual([{ name: 'ping', title: expect.any(String) }]);
+    expect(await make({ query } as SapDbAdapter).available(user)).toEqual([
+      { name: 'ping', title: expect.any(String) },
+      { name: 'batch-stock', title: expect.any(String) },
+    ]);
   });
 });