Add teams mode for reviewer requests (#183)
When using this mode, Policy Bot requests reviews from teams rather than individual users. The teams must be collaborators with at least read permissions on the repository.
Enable asynchronous processing for webhooks (#187)
Policy Bot now processes all webhooks in separate goroutines, avoiding issues with GitHub webhook delivery time outs. By default, there are 10 workers processing events with a queue size of 100. These values are adjustable using the workers.workers and workers.queue_size configuration properties.