Let's stop creating duplicates for local and remote variants.In this commit we moved the following tests: - test_version_management - test_child_pids - test_exceptionsrun_tests.sh is updated to execute new non-remote tests from TestTestgresCommon, too.

New tests are added: - test_auto_name - test_file_tail - test_isolation_levels

New tests: - test_users - test_poll_query_until - test_logging

New tests: - test_double_init - test_init_after_cleanup - test_init_unique_system_id - test_node_exit - test_double_start - test_uninitialized_start - test_restart - test_reload - test_pg_ctl - test_statusNew methods: - helper__skip_test_if_pg_version_is_not_ge - helper__skip_test_if_util_not_exist - helper__util_exists

New tests: - test_psql - test_safe_psql__expect_error - test_transactions - test_control_data - test_backup_simple - test_backup_multiple - test_backup_exhaust - test_backup_wrong_xlog_method - test_pg_ctl_wait_option - test_replicate - test_synchronous_replication - test_logical_replication - test_logical_catchup - test_logical_replication_fail - test_replication_slots - test_incorrect_catchup - test_promotion - test_dump

This base class requires: - explicit os_ops objectThis base class declares the following abstract properties: - logs_dir - data_dir - utils_log_file - pg_log_file

- [del] import get_pg_version- [del] improt PgVer- [del] pg_version_ge

This thing is required only in the constructor of PostgresNode.

PostgresNode_Base::clean deletes data_dir and logs_dirPostgresNode::clean calls PostgresNode_Base::clean and deletes base_dir.

Names from 'utils' module are used explicitly.

Names from 'consts' module are used explicitly.

- [del] import of PG_CTL__STATUS__OK- [del] import of PG_CTL__STATUS__NODE_IS_STOPPED- [del] PG_CTL__STATUS__BAD_DATADIR

[del] node.should_rm_dirs=True

The problems on Probackup's CFS test are detected.Parameter 'full' must be respected!

It a right way for creating a clone of PostgresNode.

…' into D20250312_002--TestTestgresCommon