* 🔧 fix: Prevent race conditions in message saving during abort scenarios
* Added logic to save partial responses before returning from the abort endpoint to ensure parentMessageId exists in the database.
* Updated the ResumableAgentController to save response messages before emitting final events, preventing orphaned parentMessageIds.
* Enhanced handling of unfinished responses to improve stability and data integrity in agent interactions.
* 🔧 fix: logging and job replacement handling in ResumableAgentController
* Added detailed logging for job creation and final event emissions to improve traceability.
* Implemented logic to check for job replacement before emitting events, preventing stale requests from affecting newer jobs.
* Updated abort handling to log additional context about the abort result, enhancing debugging capabilities.
* refactor: abort handling and token spending logic in AgentStream
* Added authorization check for abort attempts to prevent unauthorized access.
* Improved response message saving logic to ensure valid message IDs are stored.
* Implemented token spending for aborted requests to prevent double-spending across parallel agents.
* Enhanced logging for better traceability of token spending operations during abort scenarios.
* refactor: remove TODO comments for token spending in abort handling
* Removed outdated TODO comments regarding token spending for aborted requests in the abort endpoint.
* This change streamlines the code and clarifies the current implementation status.
* ✅ test: Add comprehensive tests for job replacement and abort handling
* Introduced unit tests for job replacement detection in ResumableAgentController, covering job creation timestamp tracking, stale job detection, and response message saving order.
* Added tests for the agent abort endpoint, ensuring proper authorization checks, early abort handling, and partial response saving.
* Enhanced logging and error handling in tests to improve traceability and robustness of the abort functionality.
