Bring over selected Warp UI improvements: selectable Thought text, message
timestamps, animated theme backgrounds, editable New Window shortcuts,
safer tab renaming and restoration, and text/font/discard crash fixes.
Match upstream orchestration pill geometry and tooltips, and replace expanded
subagent previews with compact links that retain live status and conversation
navigation for launches and follow-up messages.
Include the pending Cargo.lock dependency refresh.
Adapted upstream PRs: #15948, #15884, #15691, #14618, #15772, #15705,
#15605, #14895, #15996, #15771, #14893, and #14603.
rkw6086