ops/dossiers-ngi: edition tree bar, 10min tip-skip rebuild, cleanup

sites/dossiers.ngi.hacktivism.ch/_edition-placeholder/index.html

@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>edition pending</title>
+<style>
+:root { color-scheme: dark; }
+body { margin:0; padding:1.5rem; font-family: ui-monospace, monospace; background:#0b0d10; color:#c8d0d8; }
+</style>
+</head>
+<body>
+{% include "_cascade/bar.html" . %}
+<h1>edition pending</h1>
+<p>Full freeze for this tip is not staged under <code>editions/</code> yet. Sticky bar still switches other builds.</p>
+</body>
+</html>