fix: land broadcast groups (#547) (thanks @pasogott)

src/config/config.test.ts

@@ -808,6 +808,41 @@ describe("talk.voiceAliases", () => {
   });
 });
 
+describe("broadcast", () => {
+  it("accepts a broadcast peer map with strategy", async () => {
+    vi.resetModules();
+    const { validateConfigObject } = await import("./config.js");
+    const res = validateConfigObject({
+      agents: {
+        list: [{ id: "alfred" }, { id: "baerbel" }],
+      },
+      broadcast: {
+        strategy: "parallel",
+        "120363403215116621@g.us": ["alfred", "baerbel"],
+      },
+    });
+    expect(res.ok).toBe(true);
+  });
+
+  it("rejects invalid broadcast strategy", async () => {
+    vi.resetModules();
+    const { validateConfigObject } = await import("./config.js");
+    const res = validateConfigObject({
+      broadcast: { strategy: "nope" },
+    });
+    expect(res.ok).toBe(false);
+  });
+
+  it("rejects non-array broadcast entries", async () => {
+    vi.resetModules();
+    const { validateConfigObject } = await import("./config.js");
+    const res = validateConfigObject({
+      broadcast: { "120363403215116621@g.us": 123 },
+    });
+    expect(res.ok).toBe(false);
+  });
+});
+
 describe("legacy config detection", () => {
   it("rejects routing.allowFrom", async () => {
     vi.resetModules();