TestPerFieldDocValuesFormat > testSortedNumericsMultipleValuesVsStoredFields FAILED

### Description

```
TestPerFieldDocValuesFormat > testSortedNumericsMultipleValuesVsStoredFields FAILED
org.apache.lucene.index.IndexNotFoundException: no segments* file found in MockDirectoryWrapper(ByteBuffersDirectory@7ca1e911 lockFactory=org.apache.lucene.store.SingleInstanceLockFactory@e250219): files: [_0.cfe, _0.cfs, _0.si, _1.fdm, _1.fdt, _1_Lucene90FieldsIndex-doc_ids_2.tmp, _1_Lucene90FieldsIndexfile_pointers_3.tmp]
at __randomizedtesting.SeedInfo.seed([EF80AAACDBCF0C78:8AABB83DBB194979]:0)
at app//org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:804)
at app//org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:105)
at app//org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:67)
at app//org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:60)
at app//org.apache.lucene.tests.index.LegacyBaseDocValuesFormatTestCase.doTestSortedNumericsVsStoredFields(LegacyBaseDocValuesFormatTestCase.java:1547)
at app//org.apache.lucene.tests.index.LegacyBaseDocValuesFormatTestCase.testSortedNumericsMultipleValuesVsStoredFields(LegacyBaseDocValuesFormatTestCase.java:2526)
at java.base@24/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base@24/java.lang.reflect.Method.invoke(Method.java:565)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1763)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:946)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:982)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:996)
at app//org.apache.lucene.tests.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:48)
at app//org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
at app//org.apache.lucene.tests.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
at app//org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
at app//org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
at app//org.junit.rules.RunRules.evaluate(RunRules.java:20)
at app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at app//com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
at app//com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:843)
at app//com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:490)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:955)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:840)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:891)
at app//com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:902)
at app//org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
at app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at app//org.apache.lucene.tests.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
at app//com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
at app//com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
at app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at app//org.apache.lucene.tests.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:51)
at app//org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
at app//org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
at app//org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
at app//org.apache.lucene.tests.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
at app//org.junit.rules.RunRules.evaluate(RunRules.java:20)
at app//com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
at app//com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
at app//com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
at java.base@24/java.lang.Thread.run(Thread.java:1447)
```

### Gradle command to reproduce

```
./gradlew test --tests TestPerFieldDocValuesFormat.testSortedNumericsMultipleValuesVsStoredFields -Dtests.seed=EF80AAACDBCF0C78 -Dtests.locale=asa-Latn-TZ -Dtests.timezone=Asia/Ulaanbaatar -Dtests.asserts=true -Dtests.file.encoding=UTF-8
```

Start by running TestPerFieldDocValuesFormat.testSortedNumericsMultipleValuesVsStoredFields with the Gradle command and seed from the issue. Read LegacyBaseDocValuesFormatTestCase.doTestSortedNumericsVsStoredFields and the DirectoryReader.open failure, then inspect how the listed segment files are created or cleaned up. Done means the reproducer passes without an IndexNotFoundException.

Written by the indexing model from the issue text.