Restyle React WVS map with static visual grammar

Co-Authored-By: PI[gpt-5.6-terra] <288921227+claudypoo@users.noreply.github.com>

scripts/wvs_react/check_layout.mjs

@@ -0,0 +1,13 @@
+import fs from 'node:fs';
+import { assertLayout } from './src/layout.js';
+
+const path = process.argv[2] ?? '../../docs/wvs/wvs_map_data.json';
+const data = JSON.parse(fs.readFileSync(path));
+const { labels, geometry } = assertLayout(data);
+const kinds = Object.values(labels).reduce((count, label) => ({ ...count, [label.kind]: (count[label.kind] ?? 0) + 1 }), {});
+console.log(JSON.stringify({
+  labels: Object.keys(labels).length,
+  kinds,
+  bounds: geometry.bounds,
+  policy: 'expanding rings, increasing steps, marker obstacles, pairwise overlap and bounds assertions',
+}, null, 2));