feat: 将视频转写重构为纯文字异步语音识别

scripts/stt-worker.ts

@@ -0,0 +1,34 @@
+import "dotenv/config";
+import { setTimeout as sleep } from "node:timers/promises";
+import { prisma } from "../lib/prisma";
+import { workerTick } from "../lib/stt/worker";
+
+let stopping = false;
+const controller = new AbortController();
+for (const signal of ["SIGTERM", "SIGINT"] as const)
+  process.on(signal, () => {
+    stopping = true;
+    controller.abort();
+  });
+async function main() {
+  console.log("[ASR] 后台执行器已启动，最大并发 2");
+  try {
+    while (!stopping) {
+      try {
+        await workerTick();
+      } catch {
+        console.error("[ASR] 数据库调度失败，稍后重试");
+      }
+      if (!stopping)
+        await sleep(1000, undefined, { signal: controller.signal }).catch(
+          () => {},
+        );
+    }
+  } finally {
+    await prisma.$disconnect();
+  }
+}
+main().catch(() => {
+  console.error("[ASR] 执行器退出");
+  process.exitCode = 1;
+});