fix(server): isolate push notification failures from the task lifecycle - #1329

fix(server): isolate push notification failures from the task lifecycle#1329

Linux2010 wants to merge 3 commits into

a2aproject:maina2aproject/a2a-python:mainfrom

Linux2010:fix/1313-push-failure-guardLinux2010/a2a-python:fix/1313-push-failure-guardCopy head branch name to clipboard