perf: embedding calc in worker process

src/pages/playground/hooks/use-embedding-worker.ts

@@ -0,0 +1,42 @@
+import { useEffect, useRef } from 'react';
+
+export default function useEmbeddingWorker() {
+  const workerRef = useRef<Worker | null>(null);
+
+  const createWorker = () => {
+    if (workerRef.current) {
+      workerRef.current.terminate();
+    }
+    workerRef.current = new Worker(
+      new URL('../config/embedding-worker.worker.ts', import.meta.url),
+      {
+        type: 'module'
+      }
+    );
+  };
+
+  const postMessage = (params: {
+    embeddings: any[];
+    textList: { text: string; name: string; uid: number | string }[];
+    fileList: { text: string; name: string; uid: number | string }[];
+  }) => {
+    if (workerRef.current) {
+      workerRef.current.postMessage(params);
+    }
+  };
+
+  const terminateWorker = () => {
+    if (workerRef.current) {
+      workerRef.current.terminate();
+      workerRef.current = null;
+    }
+  };
+
+  useEffect(() => {
+    return () => {
+      terminateWorker();
+    };
+  }, []);
+
+  return { workerRef, createWorker, postMessage, terminateWorker };
+}