Filled DatabaseName in LoadTest while sending TEvNavigate events

[n00bcracker]

Improve isolation of Describe path requests in Load tests

[github-actions]

🟢 2025-09-30 14:52:53 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-09-30 15:07:05 UTC Pre-commit check linux-x86_64-release-asan for adcc865 has started.
⚪ 2025-09-30 15:07:09 UTC Artifacts will be uploaded here
⚪ 2025-09-30 15:10:40 UTC ya make is running...
🟡 2025-09-30 17:25:43 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
15144	14712	0	157	254	21

🟢 2025-09-30 17:25:48 UTC Build successful.
🟢 2025-09-30 17:26:10 UTC ydbd size 3.7 GiB changed* by +65.9 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 64ee86c	merge: adcc865	diff	diff %
ydbd size	3 987 861 456 Bytes	3 987 928 920 Bytes	+65.9 KiB	+0.002%
ydbd stripped size	1 486 406 048 Bytes	1 486 428 000 Bytes	+21.4 KiB	+0.001%

^{*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]

⚪ 2025-09-30 15:26:13 UTC Pre-commit check linux-x86_64-relwithdebinfo for adcc865 has started.
⚪ 2025-09-30 15:26:17 UTC Artifacts will be uploaded here
⚪ 2025-09-30 15:29:51 UTC ya make is running...
🟡 2025-09-30 17:16:00 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
30700	29295	0	2	1373	30

⚪ 2025-09-30 17:16:09 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-09-30 17:31:27 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
369 (only retried tests)	345	0	0	1	23

🟢 2025-09-30 17:31:31 UTC Build successful.
🟢 2025-09-30 17:31:48 UTC ydbd size 2.2 GiB changed* by +18.3 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 440fe54	merge: adcc865	diff	diff %
ydbd size	2 397 694 880 Bytes	2 397 713 648 Bytes	+18.3 KiB	+0.001%
ydbd stripped size	512 631 368 Bytes	512 635 368 Bytes	+3.9 KiB	+0.001%

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