docs: repair README and deploy.sh drift

README: tmux requirement wording, invite-only list marker, name
charset, --party on moderation rows, PARTY_SOCKET_DIR whitespace note,
read-only join fallback. deploy.sh: drop phantom tests/run-remote.sh
include (file lives under legacy/ only) and fix the ship-list comment.
SERVERS.md and HISTORY.md were refreshed too but stay local-only per
.git/info/exclude ("Local docs — never published").

deploy.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 # Sync the deployable surface to a remote host for `make install`. Pins the
-# include list to the seven items the project ships: Makefile, party, party.1,
+# include list to what the project ships: Makefile, party, party.1,
 # README.md, tools/post-install.sh, and tests/ (so the host can run `make
 # check` as a target-OS smoke test). This is the dev-rsync variant. The
 # release-tarball variant strips tests/ as well; not implemented here.
@@ -44,6 +44,5 @@ exec rsync -av --delete "$@" \
     --include='/tests/' \
     --include='/tests/*.bats' \
     --include='/tests/helpers.bash' \
-    --include='/tests/run-remote.sh' \
     --exclude='*' \
     ./ "$dest"