fix(identity): rsync ownership parity for numeric-ids, dirs, maps, fake-super (#286, #294)

- #286: --numeric-ids is a mapping modifier only; it no longer activates
  chown by itself (identity_active_enabled/owner/group predicates), and
  --fake-super stores the resolved mapping instead of real-chowning.
- #286: apply owner/group to directories via the deferred directory
  metadata path; capture+transmit+apply directory xattrs/ACLs (-aX/-aA),
  including default ACLs, in STATUS_MKDIR/STATUS_DIR_TIMES.
- #294: --usermap/--groupmap support inclusive ranges, '*', empty FROM
  (unnamed ids), and receiver-side TO name resolution; --chown mixing with
  a same-side map is rejected like rsync.
- Protocol 2.22.0 -> 2.23.0 (map wire entry gains from_hi + to_name;
  dir frames gain a bounded xattr block).

src/client/client_send.c

@@ -1429,7 +1429,11 @@ static bool send_directory_entry(const Client* client, File* file, const Config*
   if (!send_status(client->file_descriptor, STATUS_MKDIR) ||
       !send_wire_str(client->file_descriptor, file_wire_path(file)))
     return false;
-  return !config->use_metadata || metadata_send(client->file_descriptor, file->metadata);
+  if (config->use_metadata && !metadata_send(client->file_descriptor, file->metadata))
+    return false;
+  /* Directory xattrs/ACLs (-X/-A) ride the same trailing block as regular files
+     when the xattr transport was negotiated. */
+  return !config->use_xattrs || xattr_send(client->file_descriptor, file->xattrs);
 }
 
 /* P7 Wave D: transmit every captured source directory's metadata in terminal
@@ -1461,6 +1465,9 @@ static bool send_dir_times(const Client* client, const Config* config, ArrayList
         return false;
       if (!send_wire_str(fd, file_wire_path(file)) || !metadata_send(fd, file->metadata))
         return false;
+      /* Directory xattrs/ACLs travel with the deferred directory metadata. */
+      if (config->use_xattrs && !xattr_send(fd, file->xattrs))
+        return false;
     }
     index += chunk;
   }