An edited post's versions open from its card

The card marks an edited post with a button that opens its versions, newest first (/statuses/:id/history), each with
its time, warning and words; PrivaPub now has a remote post's earlier versions from Pleroma's formerRepresentations
too. The composer's e2e test opens the history after its edit. The wall test retries smuser's post while Smithereen
has not yet had the persona's Accept.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

CLAUDE.md

@@ -261,6 +261,8 @@ supplies:
 - **The composer** (`Components/Composer.razor`) writes a post, a reply (`InReplyTo`), a quote (`Quoting`, offered on a
   card when the server says the persona may quote it) or an edit of the persona's own post (`Editing`: its words and
   warning from `/source`, a PUT that keeps its media, visibility and poll); a post can hold a poll instead of media.
+  An edited post's card says so, and its versions open from there (`/statuses/:id/history`, newest first; PrivaPub
+  keeps a remote post's earlier versions from its edits and from Pleroma's `formerRepresentations`).
 - **Threads** (`Pages/ExpandMessage.razor` at `/expand/{id}`): opening a remote thread makes PrivaPub read its replies
   from their servers (its FEP-7888 `context`, else `replies`), so the page reads the thread again after 4 and 15 seconds
   and adds what was found, in the thread's order.