feat: add logto auth and backend metrics integration

src/background/auth/state.ts

@@ -0,0 +1,38 @@
+import type { AuthConfig } from "../../shared/auth-config";
+import type { AuthStateValue } from "../../shared/auth-messages";
+
+export function createLoggedOutAuthState(
+  config?: Pick<AuthConfig, "apiResource">
+): AuthStateValue {
+  return {
+    isAuthenticated: false,
+    resource: config?.apiResource ?? null
+  };
+}
+
+export function createLoggedInAuthState(
+  claims: Record<string, unknown> | null | undefined,
+  config?: Pick<AuthConfig, "apiResource" | "scopes">
+): AuthStateValue {
+  return {
+    accessTokenExpiresAt: null,
+    isAuthenticated: true,
+    resource: config?.apiResource ?? null,
+    scopes: config?.scopes ?? [],
+    tokenAvailable: true,
+    userInfo: {
+      email: readStringClaim(claims, "email"),
+      name: readStringClaim(claims, "name"),
+      sub: readStringClaim(claims, "sub"),
+      username: readStringClaim(claims, "username")
+    }
+  };
+}
+
+function readStringClaim(
+  claims: Record<string, unknown> | null | undefined,
+  key: string
+): string | undefined {
+  const value = claims?.[key];
+  return typeof value === "string" ? value : undefined;
+}