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/@noble/hashes/src/_blake.ts

@@ -0,0 +1,50 @@
+/**
+ * Internal helpers for blake hash.
+ * @module
+ */
+import { rotr } from './utils.ts';
+
+/**
+ * Internal blake variable.
+ * For BLAKE2b, the two extra permutations for rounds 10 and 11 are SIGMA[10..11] = SIGMA[0..1].
+ */
+// prettier-ignore
+export const BSIGMA: Uint8Array = /* @__PURE__ */ Uint8Array.from([
+  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+  14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3,
+  11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4,
+  7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8,
+  9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13,
+  2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9,
+  12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11,
+  13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10,
+  6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5,
+  10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13, 0,
+  0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+  14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3,
+  // Blake1, unused in others
+  11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4,
+  7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8,
+  9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13,
+  2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9,
+]);
+
+// prettier-ignore
+export type Num4 = { a: number; b: number; c: number; d: number; };
+
+// Mixing function G splitted in two halfs
+export function G1s(a: number, b: number, c: number, d: number, x: number): Num4 {
+  a = (a + b + x) | 0;
+  d = rotr(d ^ a, 16);
+  c = (c + d) | 0;
+  b = rotr(b ^ c, 12);
+  return { a, b, c, d };
+}
+
+export function G2s(a: number, b: number, c: number, d: number, x: number): Num4 {
+  a = (a + b + x) | 0;
+  d = rotr(d ^ a, 8);
+  c = (c + d) | 0;
+  b = rotr(b ^ c, 7);
+  return { a, b, c, d };
+}