[docs] Add new fileds in actor system config

[kruall]

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[github-actions]

⚪ 2025-09-12 13:03:04 UTC Pre-commit check linux-x86_64-relwithdebinfo for 26fcfa7 has started.
⚪ 2025-09-12 13:03:18 UTC Artifacts will be uploaded here
⚪ 2025-09-12 13:05:51 UTC ya make is running...
🟢 2025-09-12 13:05:57 UTC Tests successful.

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
0	0	0	0	0	0

🟢 2025-09-12 13:06:03 UTC Build successful.

[github-actions]

🟢 2025-09-12 13:03:17 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-09-12 13:03:25 UTC Pre-commit check linux-x86_64-release-asan for 26fcfa7 has started.
⚪ 2025-09-12 13:03:38 UTC Artifacts will be uploaded here
⚪ 2025-09-12 13:06:09 UTC ya make is running...
🟢 2025-09-12 13:06:15 UTC Tests successful.

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
0	0	0	0	0	0

🟢 2025-09-12 13:06:21 UTC Build successful.

[github-actions]

✅ Documentation build

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Warnings (2)

⚠️ ru/yql/reference/syntax/alter-transfer.md: 14: MD051 / link-fragments Link fragments should be valid [Context: "lambda-функция"]

⚠️ ru/yql/reference/syntax/create-transfer.md: 16: MD051 / link-fragments Link fragments should be valid [Context: "lambda-функция"]

[ydbot]

Hey @lopatinevgeny, it has been 30 business-hours since the author's last update, could you please review?