- Open 「用户轨迹」 straight on the live map instead of a drawer, carrying the
server, the focused user and a start/end window through the plugin page hash.
- Default that window to one hour before the user's last seen time and keep the
plugin page query available to bundles through the host context.
- Replace the time range preset gate with always visible start/end datetime
fields plus a quick-range select, so the user list rebuilds from the window.
- Drop the bulky trajectory list and draw one compact colour legend under the
map, keeping a stable colour per identity and restricting vehicle tracks to
the vehicles the selected users actually rode.