Ensure CSS updates after deploy

.vscode/settings.json

@@ -9,6 +9,13 @@
     "./_dokuwiki/vendor"
   ],
 
+  // DokuWiki replaces @ini_* placeholders server-side.
+  // VS Code's CSS validator doesn't understand those tokens, but LESS does.
+  "files.associations": {
+    "style.css": "less",
+    "temp-input-colors.css": "less"
+  },
+
   // Keep the file explorer tidy when the optional DokuWiki checkout exists.
   "files.exclude": {
     "**/_dokuwiki/.git": true,