fix: clean up SSE session on client disconnect - #2200

fix: clean up SSE session on client disconnect#2200

maxisbey merged 5 commits into

modelcontextprotocol:mainmodelcontextprotocol/python-sdk:mainfrom

Varun6578:fix/sse-session-cleanupVarun6578/python-sdk:fix/sse-session-cleanupCopy head branch name to clipboard