- ttPlate/ttName/ttSub/ttHint were created as bare scene objects at depth 5, so they painted behind the map window (depth 80) and were never hidden on close, leaving a lingering "TAP TO PLOT COURSE" button on the world
- Add them to the ttCont container (which is inside MapWindow) so they paint with the window, fade with its close tween, and hide with ttCont
- Add dev/map-click.html + dev/map-click.mjs regression harness that opens the map, hovers/clicks a discovered object, verifies autopilot targeting, and checks no tooltip lingers after close
- Add rocky-surface-02.png asset
