fix(douyin): 图文视频直接返回feed文案跳过ASR

apps/api/app/api/routes/scripts_ai.py

@@ -356,7 +356,7 @@ def _fetch_ttwid():
     # 方式一：直接调 ttwid 注册接口
     try:
         with httpx.Client(timeout=8, follow_redirects=True, verify=False) as http:
-            http.post(
+            r = http.post(
                 "https://ttwid.bytedance.com/ttwid/union/register/",
                 json={
                     "region": "cn",
@@ -769,7 +769,7 @@ def _ytdlp_download_and_local_asr(page_url, temp_dir, cookiefile=None):
         cookie_files_to_try.append(cookiefile)
 
     # 2. 合成 cookie 重试（复用 _ytdlp_extract 的 cookie 生成逻辑，8次重试）
-    import time as _time
+    import secrets, time as _time
     ttwid = _fetch_ttwid()
     for i in range(8):
         if i % 3 == 0:
@@ -945,10 +945,9 @@ def _html_scrape_direct_url(page_url, timeout=15):
 @router.get("/douyin/__debug_diag")
 def douyin_diag():
     """[Staging only] 容器内网络/yt-dlp诊断"""
-    import tempfile as _tf
-    import time as _t
-
     import httpx as _httpx
+    import time as _t
+    import tempfile as _tf
     import yt_dlp as _ytdlp
 
     results = {}
@@ -1126,11 +1125,23 @@ def extract_from_douyin(
         direct_url, feed_desc = _feed_fetch(page_url, timeout=15, max_retries=3)
         if direct_url:
             logger.info("抖音 App Feed API 直连成功: url=%s play_len=%d", page_url, len(direct_url))
+        elif feed_desc:
+            logger.info("抖音 App Feed API 返回图文视频，仅用文案: desc_len=%d", len(feed_desc))
     except Exception as exc:  # noqa: BLE001
         logger.warning("抖音 App Feed API 异常: %s", exc)
 
     text = ""
     duration = 0.0
+    # 图文视频（direct_url 为 None 但 feed_desc 有文案）直接返回文案，跳过 ASR
+    if not direct_url and feed_desc:
+        text = feed_desc.strip()
+        logger.info("图文视频直接返回文案: url=%s text_len=%d", page_url, len(text))
+        return ExtractFromDouyinResponse(
+            text=text,
+            duration_seconds=0.0,
+            source_url=page_url,
+        )
+
     cookiefile = _resolve_cookies_file()
     mk_client = get_mediakit_client()