YQ-4272 Added FlagSubscribeOnSession in resource_allocator

[kardymonds]

Changelog entry

...

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

...

[github-actions]

🟢 2025-08-27 10:00:14 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-08-27 10:07:57 UTC Pre-commit check linux-x86_64-relwithdebinfo for 226a8af has started.
⚪ 2025-08-27 10:08:08 UTC Artifacts will be uploaded here
⚪ 2025-08-27 10:11:28 UTC ya make is running...
🟡 2025-08-27 11:32:05 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
37788	35038	0	2	2712	36

⚪ 2025-08-27 11:35:24 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-08-27 11:51:39 UTC Tests successful.

Test history | Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
402 (only retried tests)	376	0	0	0	26

🟢 2025-08-27 11:51:47 UTC Build successful.
🟢 2025-08-27 11:52:12 UTC ydbd size 2.3 GiB changed* by -1.2 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 3d5b5cb	merge: 226a8af	diff	diff %
ydbd size	2 433 632 712 Bytes	2 433 631 440 Bytes	-1.2 KiB	-0.000%
ydbd stripped size	509 787 528 Bytes	509 787 464 Bytes	-64 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

⚪ 2025-08-27 10:12:31 UTC Pre-commit check linux-x86_64-release-asan for 226a8af has started.
⚪ 2025-08-27 10:12:42 UTC Artifacts will be uploaded here
⚪ 2025-08-27 10:16:10 UTC ya make is running...
🟡 2025-08-27 12:26:05 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
15159	14503	0	282	340	34

🟢 2025-08-27 12:27:26 UTC Build successful.
🟢 2025-08-27 12:28:07 UTC ydbd size 4.0 GiB changed* by -2.0 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 46bb9f3	merge: 226a8af	diff	diff %
ydbd size	4 276 711 480 Bytes	4 276 709 472 Bytes	-2.0 KiB	-0.000%
ydbd stripped size	1 483 174 200 Bytes	1 483 173 944 Bytes	-256 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}