Audits and fixes ground-teleport/flat-fall/toss-momentum physics bugs,
fixes drag getting stuck via missing pointercancel handling, replaces
sprite-based speech bubbles with real HTML text/emoji bubbles, adds
drag-onto-icon "investigate" reactions and idle chatter, merges the
name badge and reaction bubble into one floating element, and caps the
bubble to one line with a teleprompter-style auto-scroll instead of
ellipsizing overflow text.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
