feat(ql3): establish 3.0 incubation baseline

packages/ql3-worker-runtime/src/process/workerProcessCli.ts

@@ -0,0 +1,58 @@
+#!/usr/bin/env node
+
+// Worker Process owns the OS signal and diagnostic stream CLI adapter.
+import {
+  runProductionWorkerProcess,
+  type WorkerProcessSignal,
+  type WorkerProcessSignalSource,
+} from './workerProcessApplication';
+
+function signalSource(): WorkerProcessSignalSource {
+  return Object.freeze({
+    subscribe(listener: (signal: WorkerProcessSignal) => void): () => void {
+      const onInterrupt = () => listener('SIGINT');
+      const onTerminate = () => listener('SIGTERM');
+      process.once('SIGINT', onInterrupt);
+      process.once('SIGTERM', onTerminate);
+      return () => {
+        process.off('SIGINT', onInterrupt);
+        process.off('SIGTERM', onTerminate);
+      };
+    },
+  });
+}
+
+async function main(): Promise<void> {
+  await runProductionWorkerProcess({
+    environment: process.env,
+    signals: signalSource(),
+    emit(event) {
+      const output = `${JSON.stringify(event)}\n`;
+      if (event.level === 'error') process.stderr.write(output);
+      else process.stdout.write(output);
+    },
+  });
+}
+
+void main().catch((error: unknown) => {
+  const candidate = error as {
+    readonly name?: unknown;
+    readonly code?: unknown;
+  };
+  process.stderr.write(
+    `${JSON.stringify({
+      schemaVersion: 1,
+      component: 'qinglong3-worker',
+      level: 'error',
+      event: 'process_failed',
+      name:
+        typeof candidate?.name === 'string'
+          ? candidate.name.slice(0, 128)
+          : 'Error',
+      ...(typeof candidate?.code === 'string'
+        ? { code: candidate.code.slice(0, 128) }
+        : {}),
+    })}\n`,
+  );
+  process.exitCode = 1;
+});