fix(observatory): refine catalog and replay UX

src/k1link/web/app.py

@@ -144,6 +144,7 @@ from k1link.web.map_api import (
     build_map_router,
 )
 from k1link.web.map_view_api import build_map_view_router
+from k1link.web.observatory_api import build_observatory_router
 from k1link.web.plugin_catalog import DevicePluginCatalog, PluginCatalogError
 from k1link.web.plugin_runtime import (
     STATE_READ_ACTION_ID,
@@ -691,6 +692,7 @@ app.include_router(
         point_color_renderers=plugin_environment.point_color_renderers,
     )
 )
+app.include_router(build_observatory_router(session_store))
 app.include_router(
     build_environment_router(root_provider=lambda: session_store.data_dir / "ui-environment")
 )