Add API queuing to support multiple asynchronous queries

[pimakshay]

This PR introduces API queuing support for multiple input queries. Previously, users could only review changes for a single query at a time. With this enhancement, users can now submit multiple queries (e.g., 10) in a single request.

Key Changes

• Added query queuing: submitted queries are queued and processed asynchronously.
• Users are notified when each query has finished processing.
• Results for individual queries can be reviewed independently.
• For each query, users can accept or discard the suggested changes.
• Once finished, all accepted changes across all queries can be approved together in a single action.

Benefits

• Improves efficiency by allowing batch submission of queries.
• Provides flexibility to review and act on results as they become available.
• Streamlines approval by consolidating accepted changes into one final approval step.