feat(cli): colorize gateway health + daemon output

src/commands/health-format.test.ts

@@ -0,0 +1,43 @@
+import { describe, expect, it } from "vitest";
+
+import { formatHealthCheckFailure } from "./health-format.js";
+
+const stripAnsi = (input: string) =>
+  input.replace(
+    // biome-ignore lint/suspicious/noControlCharactersInRegex: strip ANSI escape sequences
+    /\u001b\[[0-9;]*m/g,
+    "",
+  );
+
+describe("formatHealthCheckFailure", () => {
+  it("keeps non-rich output stable", () => {
+    const err = new Error(
+      "gateway closed (1006 abnormal closure): no close reason",
+    );
+    expect(formatHealthCheckFailure(err, { rich: false })).toBe(
+      `Health check failed: ${String(err)}`,
+    );
+  });
+
+  it("formats gateway connection details as indented key/value lines", () => {
+    const err = new Error(
+      [
+        "gateway closed (1006 abnormal closure (no close frame)): no close reason",
+        "Gateway target: ws://127.0.0.1:19001",
+        "Source: local loopback",
+        "Config: /Users/steipete/.clawdbot-dev/clawdbot.json",
+        "Bind: loopback",
+      ].join("\n"),
+    );
+
+    expect(stripAnsi(formatHealthCheckFailure(err, { rich: true }))).toBe(
+      [
+        "Health check failed: gateway closed (1006 abnormal closure (no close frame)): no close reason",
+        "  Gateway target: ws://127.0.0.1:19001",
+        "  Source: local loopback",
+        "  Config: /Users/steipete/.clawdbot-dev/clawdbot.json",
+        "  Bind: loopback",
+      ].join("\n"),
+    );
+  });
+});