Filled db names in SchemeCache requests and removed unnecessary CanonizePath

[n00bcracker]

Changelog entry

1. Filled db names in remained SchemeCache requests
2. Deleted filling db name in GRPC requests with default values
3. Deleted unnecessary CanonizePath calls for db names

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

...

[github-actions]

🟢 2025-10-29 13:13:16 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-10-31 15:00:51 UTC Pre-commit check linux-x86_64-relwithdebinfo for f77d4c0 has started.
⚪ 2025-10-31 15:01:09 UTC Artifacts will be uploaded here
⚪ 2025-10-31 15:02:33 UTC ya make is running...
🟡 2025-10-31 16:37:08 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
41097	38268	0	6	2793	30

⚪ 2025-10-31 16:37:24 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-10-31 16:47:44 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
65 (only retried tests)	51	0	0	0	14

🟢 2025-10-31 16:47:46 UTC Build successful.
🟢 2025-10-31 16:48:02 UTC ydbd size 2.3 GiB changed* by -61.5 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 4af0266	merge: f77d4c0	diff	diff %
ydbd size	2 427 637 080 Bytes	2 427 574 152 Bytes	-61.5 KiB	-0.003%
ydbd stripped size	515 904 712 Bytes	515 897 928 Bytes	-6.6 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]

⚪ 2025-10-31 15:02:06 UTC Pre-commit check linux-x86_64-release-asan for f77d4c0 has started.
⚪ 2025-10-31 15:02:23 UTC Artifacts will be uploaded here
⚪ 2025-10-31 15:03:51 UTC ya make is running...
🟡 2025-10-31 17:31:45 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?
17495	16685	0	427	345	38

🟢 2025-10-31 17:31:52 UTC Build successful.
🟢 2025-10-31 17:32:19 UTC ydbd size 3.8 GiB changed* by -66.4 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 4af0266	merge: f77d4c0	diff	diff %
ydbd size	4 065 299 928 Bytes	4 065 231 952 Bytes	-66.4 KiB	-0.002%
ydbd stripped size	1 509 159 304 Bytes	1 509 154 984 Bytes	-4.2 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}

[nikvas0]

kqp ok