More reliable risky-message filtering and thread search
Two chat-detail fixes land together: the "Risky only" filter now finds flagged messages no matter where they sit in a long thread, and search steps through every match in order instead of highlighting them all the same color.
Bug fixes
Fix "Risky only" filter missing findings on other pages#3715 - The filter previously showed nothing when flagged messages sat on transcript pages that weren't loaded.
now returns the seqs of flagged messages so the panel can window the full thread and filter correctly, and the toggle is available to any authorized viewer rather than only org admins. (Author: @adaam2)
Step through search matches one at a time#3715 - Search-within-thread now steps through every occurrence in document order, across message text and tool call arguments and output, with the active occurrence highlighted distinctly, instead of jumping per message and highlighting every hit the same color. (Author: @adaam2)
