Parametrize tests with pools encryption

[rosik]

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Description for reviewers

• Part of Добавить в тестовую обвязку запуск с шифрованием групп и аутентификацией, продублировать тесты в 4 вариантах #29326

Parametrize one test for now:

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🟢 2025-12-08 12:56:04 UTC The validation of the Pull Request description is successful.

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Pull request overview

This PR introduces parametrized testing for pool encryption functionality by creating reusable fixtures that run tests with encryption both enabled and disabled. The changes enable a single test module to be automatically executed in both encrypted and non-encrypted configurations.

Key changes:

• Added parametrized fixtures for encryption testing that automatically run tests with encryption enabled/disabled
• Implemented auto-generation of encryption keys for test slots when pool encryption is enabled
• Updated configuration generator to apply encryption mode to storage pool types

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 6 comments.

File	Description
ydb/tests/library/fixtures/init.py	Adds encryption_enabled parametrized fixture and ydb_cluster_configuration_with_encryption_parametrized fixture that extends cluster configuration with encryption settings
ydb/tests/library/harness/kikimr_runner.py	Implements auto-generation of encryption keys and configuration files for test slots when pool encryption is enabled
ydb/tests/library/harness/kikimr_config.py	Adds enable_pool_encryption parameter to KikimrConfigGenerator and configures encryption mode for storage pools in YAML config
ydb/tests/functional/tenants/test_auth_system_views.py	Updates ydb_configurator fixture to use the new encryption-parametrized configuration fixture

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[github-actions]

⚪ 2025-12-08 18:29:22 UTC Pre-commit check linux-x86_64-release-asan for 799cd5d has started.
⚪ 2025-12-08 18:29:41 UTC Artifacts will be uploaded here
⚪ 2025-12-08 18:31:50 UTC ya make is running...
🟡 2025-12-08 19:11:52 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?
1794	1772	0	8	6	8

🟢 2025-12-08 19:11:59 UTC Build successful.
🟢 2025-12-08 19:12:21 UTC ydbd size 3.8 GiB changed* by +47.9 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 4921cae	merge: 799cd5d	diff	diff %
ydbd size	4 129 997 880 Bytes	4 130 046 976 Bytes	+47.9 KiB	+0.001%
ydbd stripped size	1 533 169 816 Bytes	1 533 185 496 Bytes	+15.3 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]

⚪ 2025-12-08 18:30:15 UTC Pre-commit check linux-x86_64-relwithdebinfo for 799cd5d has started.
⚪ 2025-12-08 18:30:33 UTC Artifacts will be uploaded here
⚪ 2025-12-08 18:32:39 UTC ya make is running...
🟢 2025-12-08 19:20:28 UTC Tests successful.

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
6733	6592	0	0	130	11

🟢 2025-12-08 19:20:37 UTC Build successful.
🟢 2025-12-08 19:20:58 UTC ydbd size 2.3 GiB changed* by -1.6 MiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 33bff08	merge: 799cd5d	diff	diff %
ydbd size	2 467 827 992 Bytes	2 466 169 536 Bytes	-1.6 MiB	-0.067%
ydbd stripped size	525 130 656 Bytes	524 847 552 Bytes	-276.5 KiB	-0.054%

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