feat: add trigger item context (item_type, item_number, trigger_label) to all OTel spans#29003

pelikhan merged 2 commits intomaingithub/gh-aw:mainfrom

copilot/otel-improvement-add-trigger-item-contextgithub/gh-aw:copilot/otel-improvement-add-trigger-item-contextCopy head branch name to clipboard