This change adds new types and updates the workflow run timeline UI to display every branch evaluation in conditional blocks—with original and rendered expressions, true/false color-coding, and matched-branch highlighting—while gracefully falling back to the legacy view for older runs. It significantly improves transparency and debuggability of conditional logic by letting users trace exactly how each condition was evaluated and which branch was chosen. Concerns include its reliance on backend PR #8400 being deployed first, the added UI complexity and potential performance impact, and the need to thoroughly test backward compatibility and error handling.