feat: enhance security (TLS), standardization (JSON Schema), and performance (uvloop)#721

Fankouzu wants to merge 2 commits intoa2aproject:maina2aproject/a2a-python:mainfrom

Fankouzu:feat/security-and-standardizationFankouzu/a2a-python:feat/security-and-standardizationCopy head branch name to clipboard