feat: add logto auth and backend metrics integration

tests/auth-messages.test.ts

@@ -0,0 +1,26 @@
+import { describe, expect, test } from "vitest";
+
+import {
+  isAuthRequestMessage,
+  isAuthResponseMessage
+} from "../src/shared/auth-messages";
+
+describe("auth-messages", () => {
+  test("accepts a get-state request", () => {
+    expect(isAuthRequestMessage({ type: "auth:get-state" })).toBe(true);
+  });
+
+  test("rejects unknown auth requests", () => {
+    expect(isAuthRequestMessage({ type: "auth:wat" })).toBe(false);
+  });
+
+  test("accepts a successful auth response envelope", () => {
+    expect(
+      isAuthResponseMessage({
+        ok: true,
+        type: "auth:state",
+        value: { isAuthenticated: false }
+      })
+    ).toBe(true);
+  });
+});