feat(tables): show live cell-selection carets in the embedded chat panel (#6081)

The table cell-selection presence room was joined only on the dedicated /tables/[id] page
(useTableRoom was passed an empty id in embedded mode). Join it in embedded too, so the
mothership chat resource panel shows collaborators' live cell selections and broadcasts the
local one. tableId is already resolved from props in embedded (the data event stream already
uses it un-gated), and authz runs on join, so this is safe. Avatars are unaffected — they
render only in the !embedded Resource.Header, so the panel gets carets without avatars.

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/tables/[tableId]/table.tsx

@@ -231,13 +231,11 @@ export function Table({
   }
   useTableEventStream({ tableId, workspaceId, onUsageLimitReached })
 
-  // Live table presence (avatars + cell-selection highlights). Scoped to the
-  // dedicated tables page — the embedded surface passes no id, disabling it.
-  const {
-    otherUsers: presenceUsers,
-    remoteSelections,
-    emitCellSelection,
-  } = useTableRoom(embedded ? '' : tableId)
+  // Live table presence (cell-selection carets + avatars). Runs in both modes so the
+  // mothership chat panel shows collaborators' live selections too. The avatar stack lives
+  // only in the `!embedded` Resource.Header, so the embedded panel gets carets without avatars
+  // for free — matching the panel's own-chrome layout.
+  const { otherUsers: presenceUsers, remoteSelections, emitCellSelection } = useTableRoom(tableId)
 
   const [slideout, dispatch] = useReducer(slideoutReducer, { kind: 'none' })
   const [showDeleteTableConfirm, setShowDeleteTableConfirm] = useState(false)