fix: eliminate repeated JSONL delta reconstruction that starves extension host#565

tianzheng-zhou wants to merge 2 commits intorajbos:mainrajbos/github-copilot-token-usage:mainfrom

tianzheng-zhou:fix/jsonl-reconstruction-event-loop-starvationtianzheng-zhou/github-copilot-token-usage:fix/jsonl-reconstruction-event-loop-starvationCopy head branch name to clipboard