chore: import upstream snapshot with attribution

tests/unit/cli-serve-stop-command.test.ts

@@ -0,0 +1,53 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+
+const ORIGINAL_DATA_DIR = process.env.DATA_DIR;
+const ORIGINAL_FETCH = globalThis.fetch;
+
+function createTempDataDir() {
+  return fs.mkdtempSync(path.join(os.tmpdir(), "omniroute-cli-stop-"));
+}
+
+async function withEnv(fn: (dataDir: string) => Promise<void>) {
+  const dataDir = createTempDataDir();
+  process.env.DATA_DIR = dataDir;
+  globalThis.fetch = (async () => {
+    throw new Error("server offline");
+  }) as typeof fetch;
+
+  const originalLog = console.log;
+  console.log = () => {};
+
+  try {
+    await fn(dataDir);
+  } finally {
+    console.log = originalLog;
+    globalThis.fetch = ORIGINAL_FETCH;
+    fs.rmSync(dataDir, { recursive: true, force: true });
+
+    if (ORIGINAL_DATA_DIR === undefined) delete process.env.DATA_DIR;
+    else process.env.DATA_DIR = ORIGINAL_DATA_DIR;
+  }
+}
+
+test("stop returns 0 when no server is running (no PID file)", async () => {
+  await withEnv(async () => {
+    const { runStopCommand } = await import("../../bin/cli/commands/stop.mjs");
+    const result = await runStopCommand({});
+    assert.equal(result, 0);
+  });
+});
+
+test("stop returns 0 when PID file exists but process is gone", async (t) => {
+  await withEnv(async (dataDir) => {
+    const pidPath = path.join(dataDir, "server.pid");
+    fs.writeFileSync(pidPath, "999999999", "utf8");
+
+    const { runStopCommand } = await import("../../bin/cli/commands/stop.mjs");
+    const result = await runStopCommand({});
+    assert.equal(result, 0);
+  });
+});