Support compact Remote setup with reader-owned access selection

sdk/python/cthulhu_tentacle/__init__.py

@@ -9,6 +9,9 @@ entries cannot be used in persistent preference pages; older hosts reject them.
 
 Protocol 1.1 interactive commands can request a reader-owned consent dialog with
 {"remote": {"role": "controller", "grants": ["remote-present"]}, "next": "approved"}.
+The request may include "optional_grants" for installed, role-valid services
+to offer in the same unchecked reader approval form. Missing optional grants
+are omitted; missing required grants fail. No access is approved implicitly.
 The continuation receives "remote" metadata after explicit local approval, or
 "cancelled": True on denial. Match approval to the actual SessionClient event;
 neither a request dictionary nor submitted metadata is itself consent. This