- Set diffAlgorithm to 'legacy' for Monaco DiffEditor - Add maxComputationTime of 10s to avoid UI freeze on huge files This addresses the issue where sessions with large JSON files (50k-100k+ lines) would cause the UI to freeze. The 'legacy' algorithm is faster than 'advanced' for large files, similar to VSCode's workaround for the same issue. See: https://github.com/microsoft/vscode/issues/184037