fix: asciidoc sectnums + twemoji version mismatch

frontend/package-lock.json

@@ -12,7 +12,7 @@
         "@excalidraw/excalidraw": "0.18.1",
         "@simplewebauthn/browser": "14.0.0",
         "@tailwindcss/vite": "4.3.3",
-        "@twemoji/api": "17.0.3",
+        "@twemoji/api": "17.0.2",
         "@xterm/addon-fit": "0.11.0",
         "@xterm/xterm": "6.0.0",
         "@zip.js/zip.js": "2.22.0",
@@ -3484,17 +3484,23 @@
       }
     },
     "node_modules/@twemoji/api": {
-      "version": "17.0.3",
-      "resolved": "https://registry.npmjs.org/@twemoji/api/-/api-17.0.3.tgz",
-      "integrity": "sha512-iwERjxY0QgPGVwT6b1OKG0Oa9nIfHhJw+Ij1TapTBMKTvVCU6qdXPXX/XKwxKx5QZIJW5GwELUCtw8wlaIQ2ug==",
+      "version": "17.0.2",
+      "resolved": "https://registry.npmjs.org/@twemoji/api/-/api-17.0.2.tgz",
+      "integrity": "sha512-5xIdBcFLpRW4goXNdNNz497TzMHF2a76yElEaqISxVPj+KpJB82KuXHczfjhhTCsPaP1lAhM3qPtvAhMG7e71A==",
       "license": "MIT AND CC-BY-4.0",
       "dependencies": {
-        "@twemoji/parser": "17.0.2",
+        "@twemoji/parser": "17.0.1",
         "fs-extra": "^8.0.1",
         "jsonfile": "^5.0.0",
         "universalify": "^0.1.2"
       }
     },
+    "node_modules/@twemoji/api/node_modules/@twemoji/parser": {
+      "version": "17.0.1",
+      "resolved": "https://registry.npmjs.org/@twemoji/parser/-/parser-17.0.1.tgz",
+      "integrity": "sha512-Uiq5sq1Wx91Y6C0DczMlu4Gj4nC/0z8UIhT7S53hi/JATaS1oLM5jXygjot7STtyVoIagfnpsBCWaNy3ayfyFw==",
+      "license": "MIT"
+    },
     "node_modules/@twemoji/parser": {
       "version": "17.0.2",
       "license": "MIT"

frontend/package.json

@@ -21,7 +21,7 @@
     "@excalidraw/excalidraw": "0.18.1",
     "@simplewebauthn/browser": "14.0.0",
     "@tailwindcss/vite": "4.3.3",
-    "@twemoji/api": "17.0.3",
+    "@twemoji/api": "17.0.2",
     "@xterm/addon-fit": "0.11.0",
     "@xterm/xterm": "6.0.0",
     "@zip.js/zip.js": "2.22.0",

frontend/src/renderers/asciidoc.js

@@ -110,10 +110,18 @@ const LOCKED_ATTRIBUTES = {
  * Attributes a page MAY set, with what it gets when it does not.
  *
  * Trailing `@`, so a document that sets one wins. These only change how a page reads.
+ *
+ * To default one to UNSET without locking it, the value is `false` and never `null`: Asciidoctor
+ * reads `null` as a hard unset that no attribute entry in the document can undo, which is
+ * `LOCKED_ATTRIBUTES`' notation and not this table's.
  */
 const DEFAULT_ATTRIBUTES = {
-  // -> Off, as markdown has no section numbering either
-  sectnums: null,
+  /*
+    Off, as markdown has no section numbering either -- but a page that writes `:sectnums:` gets it.
+    The number is part of the heading's text, so the sidebar's contents (`anchorHeadings`) carries it
+    too, while the heading's id is derived from the title alone and stays the same either way.
+  */
+  sectnums: false,
   idprefix: '@',
   idseparator: '-@',
   tabsize: '2@'