Added slash command handling

gateway-plugin/protocol.py

@@ -71,6 +71,9 @@ TYPE_CHANNEL_LIST = "channel.list"
 TYPE_SEARCH = "search"
 TYPE_SEARCH_RESULTS = "search.results"
 
+# Slash-command catalog (app's "/" drawer)
+TYPE_COMMANDS_CATALOG = "commands.catalog"
+
 # Reconnect catch-up (M3 outbox; extended by M5 push)
 TYPE_SYNC = "sync"
 TYPE_SYNC_DONE = "sync.done"
@@ -502,6 +505,24 @@ def search_results(
     )
 
 
+# ---------------------------------------------------------------------------
+# Slash-command catalog frames
+# ---------------------------------------------------------------------------
+
+def commands_catalog(commands: List[Dict[str, Any]], *, id: Optional[int] = None) -> Frame:
+    """Response to a ``commands.catalog`` request: the gateway's slash-command
+    catalog for the app's ``/`` drawer.
+
+    Each entry: ``{name, description, args_hint, category, aliases}`` where
+    ``name``/``aliases`` carry the leading slash (``"/new"``, ``["/reset"]``).
+    """
+    return Frame(
+        type=TYPE_COMMANDS_CATALOG,
+        id=id,
+        payload={"commands": commands},
+    )
+
+
 # ---------------------------------------------------------------------------
 # Sync frames (M3 outbox)
 # ---------------------------------------------------------------------------