Refactor Notices and System Health pane (#24243)

* refactor notices

* show startup message for enrichments in health pane

* tweaks

generate_api_auth_spec.py

@@ -331,7 +331,8 @@ def build_access_map(
         for method in route.methods:
             if method in ("HEAD", "OPTIONS"):
                 continue
-            access_map[(route.path, method.lower())] = {
+            # the OpenAPI paths drop convertors such as :path, like path_format
+            access_map[(route.path_format, method.lower())] = {
                 "level": level,
                 "roles": roles,
                 "flag": flag,