The ~sx-header island now shows the current page path (faded, after the copyright) inside the copyright lake. Navigate between pages: the path text updates via server-driven lake morph while the reactive colour-cycling signal persists. Subtle visible proof of L2-3. Also fixes Island &key param serialization in component-source helper. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>