feat: implement store home page with product listing, pagination, and error handling

src/app/app.routes.spec.ts

@@ -31,6 +31,13 @@ function createTenantServiceStub(
     tenant: tenantState.asReadonly(),
     status: statusState.asReadonly(),
     getTenant: () => tenantState(),
+    getTenantApiUrl: () => {
+      const tenantVal = tenantState();
+      if (!tenantVal) {
+        throw new Error('No se pudo resolver el tenant activo.');
+      }
+      return `http://localhost:8000/api/tenants/${tenantVal.codigo}`;
+    },
     bootstrap: vi.fn().mockResolvedValue(undefined)
   };
 }