Merge BlobDepot fixes (merge from main #16116 #16144)

[alexvru]

• Fix loading tx (Fix loading tx #16116)
• Fix excessive CPU utilization by BlobDepot monitoring code (Fix excessive CPU utilization by BlobDepot monitoring code #16144)

Changelog entry

Merge BlobDepot fixes from main

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

This fixes BlobDepot loading tx assertion failure.

[github-actions]

🟢 2025-04-02 09:05:38 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-04-02 09:05:54 UTC Pre-commit check linux-x86_64-release-asan for 06a7fc6 has started.
⚪ 2025-04-02 09:06:10 UTC Artifacts will be uploaded here
⚪ 2025-04-02 09:09:18 UTC ya make is running...
🟡 2025-04-02 10:25:35 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
12111	12046	0	22	6	37

⚪ 2025-04-02 10:26:39 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-04-02 10:47:13 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
106 (only retried tests)	70	0	0	2	34

🟢 2025-04-02 10:47:23 UTC Build successful.
🟢 2025-04-02 10:47:51 UTC ydbd size 3.6 GiB changed* by +40.4 KiB, which is < 100.0 KiB vs stable-25-1: OK

ydbd size dash	stable-25-1: fc17805	merge: 06a7fc6	diff	diff %
ydbd size	3 903 060 872 Bytes	3 903 102 288 Bytes	+40.4 KiB	+0.001%
ydbd stripped size	1 365 851 888 Bytes	1 365 861 488 Bytes	+9.4 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]

⚪ 2025-04-02 09:07:51 UTC Pre-commit check linux-x86_64-relwithdebinfo for 06a7fc6 has started.
⚪ 2025-04-02 09:08:06 UTC Artifacts will be uploaded here
⚪ 2025-04-02 09:11:01 UTC ya make is running...
🟡 2025-04-02 10:12:12 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?
19354	18004	0	3	1219	128

⚪ 2025-04-02 10:13:51 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-04-02 10:34:11 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
198 (only retried tests)	69	0	0	2	127

🟢 2025-04-02 10:34:20 UTC Build successful.
🟢 2025-04-02 10:34:39 UTC ydbd size 2.1 GiB changed* by +29.7 KiB, which is < 100.0 KiB vs stable-25-1: OK

ydbd size dash	stable-25-1: fc17805	merge: 06a7fc6	diff	diff %
ydbd size	2 243 679 488 Bytes	2 243 709 904 Bytes	+29.7 KiB	+0.001%
ydbd stripped size	475 120 760 Bytes	475 128 824 Bytes	+7.9 KiB	+0.002%

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