[refactoring]: refactor some old functions in adapter and improve comments

[GermanBluefox]

No description provided.

[foxriver76]

I am not sure if it makes sense to only touch codebase without changing anything with the risk of introducing errors

PR Overview

This PR refactors several functions in the adapter and improves associated comments for better clarity. Key changes include:

• Updated documentation and deprecated annotations for clarity.
• Conversion of functions from callback-based to async/await (e.g., _deleteObjects and _extendObjects).
• Minor type refinements and improved logging, including a new version check warning.

Reviewed Changes

File	Description
packages/adapter/src/lib/adapter/adapter.ts	Refactoring functions to async/await and clarifying comments; improved type assertions and error handling

Copilot reviewed 1 out of 1 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (2)

packages/adapter/src/lib/adapter/adapter.ts:11899

• Switching from callback-based error handling to throwing an error in _extendObjects may abort processing of remaining tasks immediately. Consider whether a more graceful error handling strategy (e.g., collecting errors or continuing with subsequent tasks) is desired.

throw e;

packages/adapter/src/lib/adapter/adapter.ts:4546

• The updated _deleteObjects function returns immediately when the tasks list is empty, which differs from the previous callback invocation. Confirm that this change in control flow is fully compatible with the calling code that no longer expects a callback.

return;