Initial pre-release

tmux-party: share a tmux session with people on the same UNIX host.
Single-file POSIX shell (party) with a filesystem + tmux server-access
trust model. See README.md.

tests/00-meta.bats

@@ -0,0 +1,20 @@
+#!/usr/bin/env bats
+
+load 'helpers'
+
+setup() { setup_party_sandbox; }
+teardown() { teardown_party_sandbox; }
+
+@test "test harness can locate the party binary path" {
+  [ -n "$PARTY_BIN" ]
+  # The file does not need to exist yet at this stage; we're proving
+  # the path is computed correctly.
+  case "$PARTY_BIN" in
+    */party) ;;
+    *) false ;;
+  esac
+}
+
+@test "sandbox setup creates the override dir" {
+  [ -d "$PARTY_SOCKET_DIR" ]
+}