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/yargs/build/lib/parse-command.js

@@ -0,0 +1,32 @@
+export function parseCommand(cmd) {
+    const extraSpacesStrippedCommand = cmd.replace(/\s{2,}/g, ' ');
+    const splitCommand = extraSpacesStrippedCommand.split(/\s+(?![^[]*]|[^<]*>)/);
+    const bregex = /\.*[\][<>]/g;
+    const firstCommand = splitCommand.shift();
+    if (!firstCommand)
+        throw new Error(`No command found in: ${cmd}`);
+    const parsedCommand = {
+        cmd: firstCommand.replace(bregex, ''),
+        demanded: [],
+        optional: [],
+    };
+    splitCommand.forEach((cmd, i) => {
+        let variadic = false;
+        cmd = cmd.replace(/\s/g, '');
+        if (/\.+[\]>]/.test(cmd) && i === splitCommand.length - 1)
+            variadic = true;
+        if (/^\[/.test(cmd)) {
+            parsedCommand.optional.push({
+                cmd: cmd.replace(bregex, '').split('|'),
+                variadic,
+            });
+        }
+        else {
+            parsedCommand.demanded.push({
+                cmd: cmd.replace(bregex, '').split('|'),
+                variadic,
+            });
+        }
+    });
+    return parsedCommand;
+}