T10: what GoToSocial had not yet been asked, and quick edits that were lost

The GoToSocial scenario gains 17 checks:
- alice's reply threads under gtsuser's post;
- gtsuser's edit arrives with edited_at and two history entries;
- unlike and unboost both ways;
- images with alt text both ways, theirs through our proxy;
- gtsuser follows a PrivaPub community and its announce brings the post;
- gtsuser's request to join a circle waits for the owner and is approved, and the
  circle post is never served unsigned;
- a locked persona holds gtsuser's follow, rejects it, then authorizes it;
- the deploy's Mastodon smoke check passes, signed in.

54 checks passed, three runs in a row. The circle post reaching gtsuser is an expected
failure: GoToSocial keeps no post addressed only to a collection it does not know.

It found a bug. An edit made within the second the post was published carries GoToSocial's
whole-second updated == published, and IsEdit wanted strictly newer, so the edit was taken
as a refresh and lost. A first edit now also counts when it is no older and the text,
warning or title actually changed. A bare refresh still never makes a revision.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2

tools/pasture/scenarios/mastodon.sh

@@ -93,12 +93,7 @@ m_quote=$(mcurl -X POST -H "$MH" "$M/api/v1/statuses" -d "status=quoting PrivaPu
 until_true 30 '[ "$(mcurl -H "$MH" "$M/api/v1/statuses/$m_quote" | j "print((d.get(\"quote\") or {}).get(\"state\"))")" = "accepted" ]' && ok "PrivaPub approves mastouser's quote (FEP-044f)" || ko "quote of a PrivaPub post not approved on Mastodon"
 
 echo "  media"
-python3 -c "
-import struct,zlib
-w=h=8
-raw=b''.join(b'\x00'+bytes([200,60,60])*w for _ in range(h))
-png=b'\x89PNG\r\n\x1a\n'+b''.join(struct.pack('>I',len(c))+t+c+struct.pack('>I',zlib.crc32(t+c)&0xffffffff) for t,c in [(b'IHDR',struct.pack('>IIBBBBB',w,h,8,2,0,0,0)),(b'IDAT',zlib.compress(raw)),(b'IEND',b'')])
-open('$work/red.png','wb').write(png)"
+make_png "$work/red.png"
 a_media=$(curl -s -X POST -H "$AH" "$P/api/v2/media" -F "file=@$work/red.png;type=image/png" -F 'description=a red square' | j "print(d['id'])")
 a_media_uri=$(curl -s -X POST -H "$AH" $P/api/v1/statuses -d "status=a picture&visibility=public&media_ids[]=$a_media" | j "print(d['uri'])")
 until_true 30 '[ "$(m_status_by_uri "$alice_on_m" "$a_media_uri" | j "print(d[\"media_attachments\"][0][\"description\"])")" = "a red square" ]' && ok "an image with alt text reaches Mastodon" || ko "image or alt text missing on Mastodon"