reinstate list-conversations invalidation on block

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/state/queries/profile.ts

@@ -42,6 +42,7 @@ import {
   ProgressGuideAction,
   useProgressGuideControls,
 } from '../shell/progress-guide'
+import {RQKEY_ROOT as RQKEY_LIST_CONVOS} from './messages/list-conversations'
 import {RQKEY as RQKEY_MY_BLOCKED} from './my-blocked-accounts'
 import {RQKEY as RQKEY_MY_MUTED} from './my-muted-accounts'
 
@@ -527,6 +528,11 @@ export function useProfileBlockMutationQueue(
       updateProfileShadow(queryClient, did, {
         blockingUri: finalBlockingUri,
       })
+      // The shadow only reaches components that read profiles through shadow
+      // hooks. The convo list is also read raw (e.g. the unread badge's
+      // calculateCount, getMessageInfo), and blocks emit no chat log event,
+      // so without a refetch that data stays stale indefinitely.
+      void queryClient.invalidateQueries({queryKey: [RQKEY_LIST_CONVOS]})
     },
   })