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/lodash/endsWith.js

@@ -0,0 +1,43 @@
+var baseClamp = require('./_baseClamp'),
+    baseToString = require('./_baseToString'),
+    toInteger = require('./toInteger'),
+    toString = require('./toString');
+
+/**
+ * Checks if `string` ends with the given target string.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category String
+ * @param {string} [string=''] The string to inspect.
+ * @param {string} [target] The string to search for.
+ * @param {number} [position=string.length] The position to search up to.
+ * @returns {boolean} Returns `true` if `string` ends with `target`,
+ *  else `false`.
+ * @example
+ *
+ * _.endsWith('abc', 'c');
+ * // => true
+ *
+ * _.endsWith('abc', 'b');
+ * // => false
+ *
+ * _.endsWith('abc', 'b', 2);
+ * // => true
+ */
+function endsWith(string, target, position) {
+  string = toString(string);
+  target = baseToString(target);
+
+  var length = string.length;
+  position = position === undefined
+    ? length
+    : baseClamp(toInteger(position), 0, length);
+
+  var end = position;
+  position -= target.length;
+  return position >= 0 && string.slice(position, end) == target;
+}
+
+module.exports = endsWith;