refactor: forester batched ops cleanup

[sergeytimoshin]

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✨ Finishing touches

🧪 Generate unit tests

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch sergey/forester-batched-cleanup

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[ananas-block]

The ci error in [examples-tests / system-programs (sdk-test-program, ["cargo-test-sbf -p sdk-test"])](https://github.com/Lightprotocol/light-protocol/actions/runs/17407986417/job/49417499842?pr=1928) should resolve with #1927

    Finished `release` profile [optimized] target(s) in 1m 10s
[2025-09-02T15:26:22.205090609Z ERROR cargo_build_sbf] Unable to get file metadata for /home/runner/work/light-protocol/light-protocol/target/sbpf-solana-solana/release/client_test.so: No such file or directory (os error 2)

[ananas-block]

How will we measure perf going forward?

[sergeytimoshin]

How will we measure perf going forward?

grafana dashboards with proper metrics, this log scrapping is too error-prone and ugly in general