IGNITE-28075 Make writeBufferSize for RocksDB log storage configurable

[rpuch]

https://issues.apache.org/jira/browse/IGNITE-28075

[Copilot]

Pull request overview

Adds a node-local configuration knob to tune RocksDB write buffer sizing for the partition raft log storage, wiring it through log storage manager creation and validating it via an integration test.

Changes:

• Introduce RocksDbLogStorageOptions and pass options into DefaultLogStorageManager for RocksDB-specific tuning.
• Wire partition raft log storage creation to read ignite.system.properties.partitionsRaftLogStorageWriteBufferSize.
• Add an integration test verifying the configured writeBufferSize is applied.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
modules/runner/src/main/java/org/apache/ignite/internal/app/IgniteImpl.java	Passes partition-specific RocksDB log storage options into shared log storage manager creation.
modules/raft/src/main/java/org/apache/ignite/internal/raft/util/SharedLogStorageManagerUtils.java	Adds overload to supply RocksDbLogStorageOptions to DefaultLogStorageManager.
modules/raft/src/main/java/org/apache/ignite/internal/raft/storage/impl/RocksDbLogStorageOptions.java	New options holder that reads partition raft log write buffer size from system local properties.
modules/raft/src/main/java/org/apache/ignite/internal/raft/storage/impl/DefaultLogStorageManager.java	Applies configurable writeBufferSize and derives related RocksDB compaction sizing from it.
modules/raft/src/test/java/org/apache/ignite/internal/raft/storage/impl/DefaultLogStorageManagerTest.java	Updates test construction to use the new DefaultLogStorageManager constructor signature.
modules/raft/src/integrationTest/java/org/apache/ignite/internal/raftsnapshot/ItLogStorageConfigurationTest.java	New IT asserting configured writeBufferSize is reflected in RocksDB column family options.
modules/raft/build.gradle	Adds RocksDB JNI dependency to the integration test classpath.

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[Phillippko]

lgtm