Add error handling callbacks for batch document operations

[ArnabChatterjee20k]

• Changes made to ensure an ongoing delete doesn't stop due to exceptions in the onNext callable
• If exceptions coming in onNext passing them to the onError callback
• Relationship deletes moved inside the transaction to ensure both relations and the original documents are deleted instead of relation deleted and the original not

Summary by CodeRabbit

• New Features

  • Added support for an optional error handling callback during document deletions to improve robustness.

• Bug Fixes

  • Enhanced error handling to catch exceptions in deletion callbacks without interrupting the deletion process.

• Tests

  • Added comprehensive tests verifying bulk document deletion with callback support.
  • Added tests ensuring restricted deletions in various relationship types prevent parent document removal when related child documents exist.