courses I and II wired: cascade + up-down split animations, fleet-labels move in VI, the library, C-II hero + manifest

pilot/assemble-arc.mjs

@@ -19,12 +19,16 @@ const i = tpl.lastIndexOf("<script>");
 const j = tpl.lastIndexOf("</script>");
 if (i < 0 || j < i) throw new Error("app script block not found");
 let app = tpl.slice(i + 8, j)
+  .replace("__MAN_DOCKER__", man("docker"))
+  .replace("__MAN_CLUSTER__", man("cluster"))
   .replace("__MAN_GITOPS__", man("gitops"))
   .replace("__MAN_SUPPLY__", man("supply"))
   .replace("__MAN_HELM__", man("helm"));
 let body = tpl.slice(0, i) + tpl.slice(j + 9);
 
 const heroes = {
+  __HERO_DOCKER__: "docker-layers.webp",
+  __HERO_CLUSTER__: "course-II-cluster.webp",
   __HERO_GITOPS__: "course-VI-gitops.webp",
   __HERO_SUPPLY__: "course-VII-supply-chain.webp",
   __HERO_HELM__: "course-VIII-helm-press.webp",