feat: full backup w/ indexes for backup collections

[Enjection]

Changelog entry

...

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

...

[github-actions]

🟢 2025-10-29 09:59:36 UTC The validation of the Pull Request description is successful.

[CyberROFL]

Suggested change

	bool omitIndexes = bc->Description.HasOmitIndexes()
	? bc->Description.GetOmitIndexes()
	: false;
	const bool omitIndexes = bc->Description.HasOmitIndexes() && bc->Description.GetOmitIndexes();

[github-actions]

⚪ 2025-10-29 09:58:18 UTC Pre-commit check linux-x86_64-release-asan for 13c044c has started.
⚪ 2025-10-29 09:58:36 UTC Artifacts will be uploaded here
⚪ 2025-10-29 10:00:06 UTC ya make is running...
🟡 2025-10-29 12:49:46 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?
18067	17480	0	277	292	18

🟢 2025-10-29 12:49:56 UTC Build successful.
🟢 2025-10-29 12:50:21 UTC ydbd size 3.8 GiB changed* by +3.1 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: f361531	merge: 13c044c	diff	diff %
ydbd size	4 063 244 720 Bytes	4 063 247 872 Bytes	+3.1 KiB	+0.000%
ydbd stripped size	1 509 631 736 Bytes	1 509 633 016 Bytes	+1.2 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]

⚪ 2025-10-29 09:58:19 UTC Pre-commit check linux-x86_64-relwithdebinfo for 13c044c has started.
⚪ 2025-10-29 09:58:38 UTC Artifacts will be uploaded here
⚪ 2025-10-29 10:00:07 UTC ya make is running...
🟡 2025-10-29 12:21:36 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
41519	38671	0	8	2807	33

⚪ 2025-10-29 12:21:54 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-10-29 12:43:31 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
804 (only retried tests)	778	0	0	6	20

🟢 2025-10-29 12:43:33 UTC Build successful.
🟢 2025-10-29 12:43:51 UTC ydbd size 2.3 GiB changed* by +1.5 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: f361531	merge: 13c044c	diff	diff %
ydbd size	2 427 610 680 Bytes	2 427 612 264 Bytes	+1.5 KiB	+0.000%
ydbd stripped size	517 613 768 Bytes	517 614 088 Bytes	+320 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}