docs(bot-mode): canonical-groups doc describes the roster rows, not the Refresh button

Also assert the whole Bots pane renders no Refresh button.

apps/desktop/docs/canonical-groups.md

@@ -1,6 +1,6 @@
 # Gateway-owned groups in Desktop
 
-Bot Mode lists gateway rooms separately from legacy renderer rooms. Refresh gateway groups reloads the selected connection/profile's canonical room list. Opening a room captures that exact authority; changing the foreground profile does not retarget its controls.
+The Bots roster lists the selected connection/profile's gateway rooms as ordinary Group Chat rows beside legacy renderer rooms. The list keeps itself current (a poll, every socket or source change, and right after a create or disband here); a failed read keeps the last good list and never shows transport text. Opening a room binds and captures that exact authority; changing the foreground profile does not retarget its controls.
 
 With `groups.capabilities.driver` enabled, the existing creation dialog creates a canonical group. Only same-authority local-profile members are supported; Desktop connection descriptors are not peer grants. Existing legacy rooms offer **Start gateway group** instead of renderer-owned execution. This starts a new room and deliberately does not replay legacy history.
 

apps/desktop/src/plugins/hermes-bots/roster-pane-gateway-rooms.test.tsx

@@ -2,7 +2,7 @@
  * The Bots pane with only its gateway transport mocked. The bot list
  * (`profiles.list` / `host.agents`) failing must not hide gateway Group Chats
  * that `groups.list` returned: rooms are part of the list, so the pane shows
- * them instead of the bot-list error.
+ * them instead of the bot-list error, with no Refresh button.
  */
 
 import type * as HermesSdk from '@hermes/plugin-sdk'
@@ -56,4 +56,5 @@ it('shows gateway Group Chats when the bot list fails', async () => {
 
   expect(await screen.findByRole('button', { name: 'Launch crew' })).toBeTruthy()
   expect(screen.queryByText(/exploded/)).toBeNull()
+  expect(screen.queryByRole('button', { name: /refresh/i })).toBeNull()
 })