feat: Passwordless cross-device authentication

- Arkitektur: docs/auth/passwordless-architecture.md
- Backend: iom/quixzoom-auth-service/ (FastAPI + Redis)
- Webb: quixzoom-market-pages/se/login/ (QR-kod + polling)
- App: iom/quixzoom-app/src/features/auth/ (push + deep links)

Flöde: QR-kod → app-godkännande → webb-inloggad

landvex/node_modules/highlight.js/lib/languages/brainfuck.js

@@ -0,0 +1,46 @@
+/*
+Language: Brainfuck
+Author: Evgeny Stepanischev <imbolk@gmail.com>
+Website: https://esolangs.org/wiki/Brainfuck
+*/
+
+/** @type LanguageFn */
+function brainfuck(hljs) {
+  const LITERAL = {
+    className: 'literal',
+    begin: /[+-]/,
+    relevance: 0
+  };
+  return {
+    name: 'Brainfuck',
+    aliases: ['bf'],
+    contains: [
+      hljs.COMMENT(
+        '[^\\[\\]\\.,\\+\\-<> \r\n]',
+        '[\\[\\]\\.,\\+\\-<> \r\n]',
+        {
+          returnEnd: true,
+          relevance: 0
+        }
+      ),
+      {
+        className: 'title',
+        begin: '[\\[\\]]',
+        relevance: 0
+      },
+      {
+        className: 'string',
+        begin: '[\\.,]',
+        relevance: 0
+      },
+      {
+        // this mode works as the only relevance counter
+        begin: /(?:\+\+|--)/,
+        contains: [LITERAL]
+      },
+      LITERAL
+    ]
+  };
+}
+
+module.exports = brainfuck;