test(gateway): cover internal provider defaults

src/utils/message-provider.test.ts

@@ -0,0 +1,12 @@
+import { describe, expect, it } from "vitest";
+
+import { resolveGatewayMessageProvider } from "./message-provider.js";
+
+describe("message-provider", () => {
+  it("normalizes gateway message providers and rejects unknown values", () => {
+    expect(resolveGatewayMessageProvider("discord")).toBe("discord");
+    expect(resolveGatewayMessageProvider(" imsg ")).toBe("imessage");
+    expect(resolveGatewayMessageProvider("teams")).toBe("msteams");
+    expect(resolveGatewayMessageProvider("nope")).toBeUndefined();
+  });
+});