Move ConstFolding to kqphost optimization pipeline

[buhtr]

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

Move Const Folding transformer to a kqphost optimization it allows to use folded expressions in the earlier stages

[github-actions]

⚪ 2025-08-27 07:22:32 UTC Pre-commit check linux-x86_64-release-asan for 9cf4c4f has started.
⚪ 2025-08-27 07:22:45 UTC Artifacts will be uploaded here
⚪ 2025-08-27 07:26:00 UTC ya make is running...
🟡 2025-08-27 09:30:57 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?
14914	14393	0	177	312	32

🟢 2025-08-27 09:32:29 UTC Build successful.
🟢 2025-08-27 09:33:02 UTC ydbd size 4.0 GiB changed* by -16.4 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 32a8062	merge: 9cf4c4f	diff	diff %
ydbd size	4 276 903 504 Bytes	4 276 886 680 Bytes	-16.4 KiB	-0.000%
ydbd stripped size	1 483 222 200 Bytes	1 483 219 000 Bytes	-3.1 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]

⚪ 2025-08-27 07:22:32 UTC Pre-commit check linux-x86_64-relwithdebinfo for 9cf4c4f has started.
⚪ 2025-08-27 07:22:48 UTC Artifacts will be uploaded here
⚪ 2025-08-27 07:26:21 UTC ya make is running...
🟡 2025-08-27 08:49:02 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?
37300	34552	0	1	2712	35

⚪ 2025-08-27 08:52:14 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-08-27 09:09:58 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
230 (only retried tests)	206	0	0	0	24

🟢 2025-08-27 09:10:06 UTC Build successful.
🟢 2025-08-27 09:10:26 UTC ydbd size 2.3 GiB changed* by -4.7 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 32a8062	merge: 9cf4c4f	diff	diff %
ydbd size	2 433 738 328 Bytes	2 433 733 472 Bytes	-4.7 KiB	-0.000%
ydbd stripped size	509 795 272 Bytes	509 794 760 Bytes	-512 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 07:22:43 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-08-28 06:41:34 UTC Pre-commit check linux-x86_64-relwithdebinfo for 717b60d has started.
⚪ 2025-08-28 06:41:49 UTC Artifacts will be uploaded here
⚪ 2025-08-28 06:45:11 UTC ya make is running...
🟡 2025-08-28 08:02:45 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?
37335	34575	0	5	2719	36

⚪ 2025-08-28 08:06:07 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-08-28 08:24:03 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
361 (only retried tests)	328	0	0	9	24

🟢 2025-08-28 08:24:12 UTC Build successful.
🟢 2025-08-28 08:24:35 UTC ydbd size 2.3 GiB changed* by +2.0 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 3a0a89e	merge: 717b60d	diff	diff %
ydbd size	2 434 481 280 Bytes	2 434 483 312 Bytes	+2.0 KiB	+0.000%
ydbd stripped size	509 948 296 Bytes	509 948 616 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}

[github-actions]

⚪ 2025-08-28 06:41:59 UTC Pre-commit check linux-x86_64-release-asan for 717b60d has started.
⚪ 2025-08-28 06:42:12 UTC Artifacts will be uploaded here
⚪ 2025-08-28 06:45:29 UTC ya make is running...
🟡 2025-08-28 08:45:50 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?
14947	14396	0	147	369	35

🟢 2025-08-28 08:47:09 UTC Build successful.
🟢 2025-08-28 08:47:41 UTC ydbd size 4.0 GiB changed* by +5.2 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 3128077	merge: 717b60d	diff	diff %
ydbd size	4 278 374 408 Bytes	4 278 379 696 Bytes	+5.2 KiB	+0.000%
ydbd stripped size	1 483 719 224 Bytes	1 483 720 440 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}