Remove ObStorageLoggerManager and move slog lifecycle into storage meta service

[hnwyllmm]

Task Description

Remove ObStorageLoggerManager and redistribute its responsibilities to the components that own them.

Solution Description

• Move server slogger ownership and lifecycle management to ObServerStorageMetaService.
• Pass slog initialization settings directly to ObStorageLogger::init.
• Move disk reservation logic and SLOG_RESERVED_DISK_SIZE to ObServerStorageMetaService.
• Move slog item and buffer allocation/freeing into ObStorageLogger.
• Replace Manager-based tenant slog path access with Router-root-based path construction.
• Update checkpoint, meta-store, block-manager, and unit tests for the new ownership model.

Passed Regressions

Upgrade Compatibility

Other Information

• Related links:
  • [DIMA-2026070900117293763](

Release Note

[hnwyllmm]

The Dima issue is about changing the standard log buffer to be allocated on-demand.