Batch processing blocks the async event loop

[jtdub]

Problem

create_batch_remediation() in batch.py:25 calls PlatformService.process_batch_job() synchronously inside an async endpoint:

PlatformService.process_batch_job(job_data)

This blocks the entire event loop for the duration of the batch, preventing the server from handling any other requests. For a batch of many devices, this could block for a significant time.

The docs describe batch processing as "parallel," but the implementation is sequential and blocking.

Suggested Fix

• Use asyncio.to_thread() or FastAPI's BackgroundTasks to run batch processing off the event loop.
• Return a 202 Accepted with the job ID immediately, and let the client poll /batch/jobs/{id} for status.
• Consider concurrent.futures.ProcessPoolExecutor for true parallelism across devices.