feat: 将视频转写重构为纯文字异步语音识别

app/aweme/[awemeId]/Client.tsx

@@ -556,7 +556,7 @@ export default function AwemeDetailClient({
               segmentProgress={imageCarouselState.segProgress}
               musicUrl={isVideo ? undefined : (data as ImageData).music_url}
               audioRef={audioRef}
-              hasTranscript={isVideo && !!transcript?.speech_detected}
+              hasTranscript={isVideo && !!transcript}
               onShowTranscript={() => setTranscriptOpen(true)}
               onTogglePlay={togglePlay}
               onSeek={handleControlSeek}

app/aweme/[awemeId]/components/TranscriptPanel.tsx

@@ -36,7 +36,7 @@ export function TranscriptPanel({
     });
   };
 
-  if (!transcript?.speech_detected || !transcript.transcript?.length) {
+  if (!transcript?.transcript?.length) {
     return (
       <div
         className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm"
@@ -60,7 +60,7 @@ export function TranscriptPanel({
 
           {/* 内容 */}
           <div className="p-8 text-center text-white/60">
-            <p>该视频暂无语音转录内容</p>
+            <p>{transcript ? "未识别到文字" : "该视频尚未转写"}</p>
           </div>
         </div>
       </div>
@@ -80,11 +80,7 @@ export function TranscriptPanel({
         <div className="flex items-center justify-between p-4 border-b border-white/10 flex-shrink-0">
           <div>
             <h2 className="text-lg font-semibold text-white">语音转录</h2>
-            {transcript.language && (
-              <p className="text-xs text-white/50 mt-1">
-                语言: {transcript.language}
-              </p>
-            )}
+
           </div>
           <div className="flex items-center gap-2">
             <button

app/aweme/[awemeId]/types.ts

@@ -53,8 +53,6 @@ export type ImageData = {
 export type AwemeData = VideoData | ImageData;
 
 export type VideoTranscript = {
-  speech_detected: boolean;
-  language: string | null;
   transcript: string[];
 };