fix(code-queue): add active-run liveness diagnostics

scripts/code-queue-liveness-diagnostics-test.ts

@@ -0,0 +1,24 @@
+import { CODE_QUEUE_LIVENESS_CHECK_NAMES, runCodeQueueLivenessFixtureChecks } from "./src/code-queue-liveness-fixtures";
+
+function optionValues(args: string[], name: string): string[] {
+  const values: string[] = [];
+  for (let index = 0; index < args.length; index += 1) {
+    if (args[index] !== name) continue;
+    const raw = args[index + 1];
+    if (raw === undefined || raw.startsWith("--")) throw new Error(`${name} requires a check name`);
+    values.push(...raw.split(",").map((item) => item.trim()).filter(Boolean));
+    index += 1;
+  }
+  return values;
+}
+
+function main(): void {
+  const only = optionValues(Bun.argv.slice(2), "--only");
+  const unknown = only.filter((name) => !CODE_QUEUE_LIVENESS_CHECK_NAMES.includes(name as never));
+  if (unknown.length > 0) throw new Error(`unknown Code Queue liveness check(s): ${unknown.join(", ")}`);
+  const result = runCodeQueueLivenessFixtureChecks(only);
+  process.stdout.write(`${JSON.stringify(result, null, 2)}\n`);
+  if (!result.ok) process.exit(1);
+}
+
+if (import.meta.main) main();