An introduction to Worker tuning

This post introduces fundamental concepts of Temporal Workers and Task Queues, explaining how Workers process Workflow and Activity Tasks. It details key metrics (`workflow_task_schedule_to_start_latency`, `worker_task_slots_available`, and poll success rate) and configuration options (`MaxConcurrentActivityExecutionSize`, `MaxConcurrentWorkflowTaskExecutionSize`) for tuning Worker performance and scaling. It also highlights the importance of having more than one worker for resilience and discusses the implications of having too many workers.