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/argparse/lib/const.js

@@ -0,0 +1,21 @@
+//
+// Constants
+//
+
+'use strict';
+
+module.exports.EOL = '\n';
+
+module.exports.SUPPRESS = '==SUPPRESS==';
+
+module.exports.OPTIONAL = '?';
+
+module.exports.ZERO_OR_MORE = '*';
+
+module.exports.ONE_OR_MORE = '+';
+
+module.exports.PARSER = 'A...';
+
+module.exports.REMAINDER = '...';
+
+module.exports._UNRECOGNIZED_ARGS_ATTR = '_unrecognized_args';