Data nodes and local sync - Misc improvements 07/08

[paul-fresquet]

This pull request refactors the session reset logic in the ByteSync server codebase, moving the responsibility from CloudSessionsService to a more granular command handler and repository approach. It also updates the corresponding unit tests and improves logging for better observability.

Refactoring session reset logic

• The session reset operation has been moved from the CloudSessionsService class to the ResetSessionCommandHandler, which now directly interacts with ICloudSessionsRepository, IInventoryService, ISynchronizationService, ISharedFilesService, and IInvokeClientsService for a more modular and testable design. (src/ByteSync.ServerCommon/Commands/CloudSessions/ResetSessionCommandHandler.cs [1] src/ByteSync.ServerCommon/Services/CloudSessionsService.cs [2] [3] src/ByteSync.ServerCommon/Interfaces/Services/ICloudSessionsService.cs [4]

Logging and observability

• Added detailed logging of loaded application settings in Program.cs and of session resets in the command handler for improved monitoring and troubleshooting. (src/ByteSync.Functions/Program.cs [1] src/ByteSync.ServerCommon/Commands/CloudSessions/ResetSessionCommandHandler.cs [2]

Unit test updates

• The unit test for session reset (ResetSessionCommandHandlerTests) has been updated to verify calls to all involved services and repositories, ensuring the new logic is properly exercised and validated. (tests/ByteSync.ServerCommon.Tests/Commands/CloudSessions/ResetSessionCommandHandlerTests.cs [1] [2]

Dependency and interface cleanup

• Removed unused dependencies and the now-obsolete ResetSession method from ICloudSessionsService, reflecting the new separation of concerns. (src/ByteSync.ServerCommon/Interfaces/Services/ICloudSessionsService.cs [1] src/ByteSync.ServerCommon/Services/CloudSessionsService.cs [2] [3] [4]