feat(files): surface configured handbook tasks

docs/FILES_HANDBOOK.md

@@ -56,6 +56,14 @@ The main domain objects are:
 The Files page is available at `/files`. Actions appear only when the current
 principal has the required permission and resource access.
 
+The configured Help Center projects these sections as independently authorized
+tasks, so upload, ZIP import, organization, download, sharing, and deletion do
+not disappear merely because an unrelated permission is absent. It states the
+deployment's actual upload limits. External import appears as a task only when
+the actor has the required permissions and at least one actor-visible profile
+is eligible for the current fail-closed browse/import path; endpoint, path, and
+item policy are still enforced when the operation runs.
+
 ### Choose a space
 
 Every file user sees **My files**. Group spaces are added for active groups of