Send user trajectories from the user list into a focused live map

- 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.

platform_web/routes/routes.test.ts

@@ -51,6 +51,14 @@ describe("console shell routes", () => {
     expect(resolved.params).toEqual({ pluginId: "game.scum", routeKey: "operations", serverId: "server/scum-1" });
   });
 
+  it("carries hosted plugin page focus queries through the hash", () => {
+    const pageQuery = { focus: "76561198000000001", from: "2026-09-16T09:30:00Z", to: "2026-09-16T11:00:00Z" };
+    const hash = hashForPage("pluginPage", { pluginId: "game.scum", routeKey: "live-map", serverId: "server-1", pageQuery });
+    const resolved = resolveRouteHash(hash, platformAdmin);
+    expect(resolved.route.id).toBe("pluginPage");
+    expect(resolved.params).toEqual({ pluginId: "game.scum", routeKey: "live-map", serverId: "server-1", pageQuery });
+  });
+
   it("keeps route metadata available for shell navigation", () => {
     expect(firstPartyRoutes.map((route) => route.id)).toContain("maintenance");
     expect(firstPartyRoutes.map((route) => route.id)).toContain("profileSettings");