test(multiplayer): verify live assignment delivery

scripts/verify_assignment_integration.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Assignment-specific variant of the real control-plane integration gate.
+# It reuses the isolated PostgreSQL + testkit API fixture, but seeds a
+# player-scoped assignment and drives the authenticated Godot assignment read.
+root_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$root_dir"
+ASSIGNMENT_SMOKE=1 bash scripts/verify_control_plane_integration.sh