fix(signal): stabilize daemon + add signal delivery

src/signal/probe.test.ts

@@ -0,0 +1,46 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import { probeSignal } from "./probe.js";
+
+const signalCheckMock = vi.fn();
+const signalRpcRequestMock = vi.fn();
+
+vi.mock("./client.js", () => ({
+  signalCheck: (...args: unknown[]) => signalCheckMock(...args),
+  signalRpcRequest: (...args: unknown[]) => signalRpcRequestMock(...args),
+}));
+
+describe("probeSignal", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("extracts version from {version} result", async () => {
+    signalCheckMock.mockResolvedValueOnce({
+      ok: true,
+      status: 200,
+      error: null,
+    });
+    signalRpcRequestMock.mockResolvedValueOnce({ version: "0.13.22" });
+
+    const res = await probeSignal("http://127.0.0.1:8080", 1000);
+
+    expect(res.ok).toBe(true);
+    expect(res.version).toBe("0.13.22");
+    expect(res.status).toBe(200);
+  });
+
+  it("returns ok=false when /check fails", async () => {
+    signalCheckMock.mockResolvedValueOnce({
+      ok: false,
+      status: 503,
+      error: "HTTP 503",
+    });
+
+    const res = await probeSignal("http://127.0.0.1:8080", 1000);
+
+    expect(res.ok).toBe(false);
+    expect(res.status).toBe(503);
+    expect(res.version).toBe(null);
+  });
+});