Add precondition method and annotation for update precondition field in test case from test result

### What problem should this solve?

There is "Precondition" update policy in testops. And when the test result is selected, there is no way to specify what should be selected to fill in the field.

I talked to testops support and they said that there is no label that they could add to this field. And that you need to add the task to the appropriate framework.

### What would you like to happen?

It would be convenient for the Allure.precondition method and the @Precondition annotation to appear, which would preserve the group of steps as a separate entity. Then, during the processing of the test results, these steps would fall into the corresponding block in both lunch and test cases.

### Alternatives considered

_No response_

### Additional context

An example of how to use this at the test level. The tests are designed to show what is required. In 1 test, it's just using a method, in the second, there are 2 method calls in a row, and the third test is an example of how an annotated method is used.

For the second test, 2 calls were used because sometimes it is necessary to prepare several different entities for the test, but it is impossible to return 2 values from anonymity without creating additional entities of the Map/Array type or class fields.
```
package ...

import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

public class Example {
private User user;

@BeforeClass(description = "Подготовка данных для тестов")
public void prepareTestData() {
dbSteps().cleanUsers();
user = prepareUser("main-region-user-name", "test", "region-main");
}

@BeforeMethod(description = "Подготовка между тестами")
public void prepareTests() {
dbSteps().cleanUserJoins(user);
}

@Test(description = "Объединение пользователя в главный регион")
public void joinUserToMainRegion() {
var userForJoin = Allure.precondition(() -> prepareUser("region-1-user-name", "test", "region-1"));
apiSteps().joinUsers(user, userForJoin).check(
response -> response.shouldOk()
.userIdShould(equalTo(user.id()))
.joinedUserIdsShould(hasSize(1))
.joinedUserIdsShould(everyItem(equalTo(userForJoin.id())))
);
}

@Test(description = "Объединение нескольких пользователей из разных регионов в главный регион")
public void joinUsersFromDifferentRegionsToMainRegion() {
var firstUserForJoin = Allure.precondition(() -> prepareUser("region-1-user-name", "test", "region-1"));
var secondUserForJoin = Allure.precondition(() -> prepareUser("region-2-user-name", "test", "region-2"));
apiSteps().joinUsers(user, firstUserForJoin, secondUserForJoin).check(
response -> response.shouldOk()
.userIdShould(equalTo(user.id()))
.joinedUserIdsShould(hasSize(2))
.joinedUserIdsShould(equalTo(List.of(firstUserForJoin.id(), secondUserForJoin.id())))
);
}

@Precondition
public User userInBlockedRegion(String name, String lastName, String regionId) {
dbStesp().setRegionBlocked(regionId);
return prepareUser(name, lastName, regionId);
}

@Test(description = "Объединение пользователя в главный регион из заблокированного")
public void joinUserToMainRegionFromBlocked() {
var regionId = "region-35";
var userForJoin = userInBlockedRegion("region-blocked-user-name", "test", regionId);
apiSteps().joinUsers(user, userForJoin).check(
response -> response.shouldError(new ApiError(500, "Region '%s' blocked".formatted(regionId)))
);
}
}
```

Beginne damit, die Java-Integrations-Einstiegspunkte nachzuverfolgen, die Testergebnisse verarbeiten, sowie die vorhandenen Allure-API- und Annotationsmuster; das Issue nennt keine Dateien oder Tests. Vergleiche die angeforderte Methode und Annotation mit den bereitgestellten TestNG-Beispielen, einschließlich mehrerer Precondition-Aufrufe und zurückgegebener Werte. Erledigt bedeutet, dass Precondition-Schritte separat erhalten bleiben und in den entsprechenden TestOps-Precondition-Blöcken für Testfälle und Launches erscheinen.

Vom Indexierungsmodell aus dem Issue-Text verfasst.