Add YAML config validation on node init

[mregrock]

Changelog entry

Add YAML config validation on node init

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

...

[github-actions]

🟢 2025-06-25 09:59:41 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-06-25 09:59:44 UTC Pre-commit check linux-x86_64-release-asan for b8a65d2 has started.
⚪ 2025-06-25 09:59:56 UTC Artifacts will be uploaded here
⚪ 2025-06-25 10:02:36 UTC ya make is running...
🟡 2025-06-25 10:43:02 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?
1381	1224	0	20	130	7

🟢 2025-06-25 10:43:16 UTC Build successful.
🟡 2025-06-25 10:43:31 UTC ydbd size 3.9 GiB changed* by +294.5 KiB, which is >= 100.0 KiB vs main: Warning

ydbd size dash	main: 94e006b	merge: b8a65d2	diff	diff %
ydbd size	4 191 905 632 Bytes	4 192 207 192 Bytes	+294.5 KiB	+0.007%
ydbd stripped size	1 453 130 520 Bytes	1 453 221 400 Bytes	+88.8 KiB	+0.006%

^{*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]

⚪ 2025-06-25 09:59:44 UTC Pre-commit check linux-x86_64-relwithdebinfo for b8a65d2 has started.
⚪ 2025-06-25 09:59:55 UTC Artifacts will be uploaded here
⚪ 2025-06-25 10:02:25 UTC ya make is running...
🟡 2025-06-25 10:20:05 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?
2161	2147	0	1	9	4

⚪ 2025-06-25 10:20:23 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-06-25 10:25:50 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
27 (only retried tests)	20	0	0	2	5

🟢 2025-06-25 10:25:59 UTC Build successful.
🟡 2025-06-25 10:26:11 UTC ydbd size 2.2 GiB changed* by +177.3 KiB, which is >= 100.0 KiB vs main: Warning

ydbd size dash	main: 94e006b	merge: b8a65d2	diff	diff %
ydbd size	2 382 783 848 Bytes	2 382 965 408 Bytes	+177.3 KiB	+0.008%
ydbd stripped size	498 851 368 Bytes	498 892 584 Bytes	+40.2 KiB	+0.008%

^{*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]

⚪ 2025-06-25 11:22:18 UTC Pre-commit check linux-x86_64-release-asan for 384da4b has started.
⚪ 2025-06-25 11:22:30 UTC Artifacts will be uploaded here
⚪ 2025-06-25 11:25:04 UTC ya make is running...
🟡 2025-06-25 12:07:56 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?
1381	1229	0	19	127	6

🟢 2025-06-25 12:08:10 UTC Build successful.
🟢 2025-06-25 12:08:26 UTC ydbd size 3.9 GiB changed* by +2.7 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: db0340a	merge: 384da4b	diff	diff %
ydbd size	4 192 207 288 Bytes	4 192 210 064 Bytes	+2.7 KiB	+0.000%
ydbd stripped size	1 453 221 464 Bytes	1 453 222 776 Bytes	+1.3 KiB	+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]

⚪ 2025-06-25 11:22:19 UTC Pre-commit check linux-x86_64-relwithdebinfo for 384da4b has started.
⚪ 2025-06-25 11:22:30 UTC Artifacts will be uploaded here
⚪ 2025-06-25 11:24:59 UTC ya make is running...
🟢 2025-06-25 11:42:31 UTC Tests successful.

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
2161	2147	0	0	9	5

🟢 2025-06-25 11:42:49 UTC Build successful.
🟢 2025-06-25 11:43:02 UTC ydbd size 2.2 GiB changed* by +1.5 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: db0340a	merge: 384da4b	diff	diff %
ydbd size	2 382 965 408 Bytes	2 382 966 920 Bytes	+1.5 KiB	+0.000%
ydbd stripped size	498 892 584 Bytes	498 893 032 Bytes	+448 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}