update verovio iframe

app.py

@@ -51,22 +51,21 @@ def wav_to_midi_and_musicxml(wav_path: str, timestamp: str) -> Path:
     return musicxml_path
 
 def build_verovio_iframe(musicxml_path: Path) -> str:
-    """
-    将 MusicXML 文件复制到 static 目录，并生成 Verovio 的 iframe HTML
-    """
     static_dir = Path("static")
+    static_dir.mkdir(exist_ok=True)
     target = static_dir / musicxml_path.name
     shutil.copy(musicxml_path, target)
 
     return f"""
     <iframe
-        src="https://www.verovio.org/editor.html?load=static/{target.name}"
+        src="/verovio.html?load=static/{target.name}"
         width="100%"
         height="500px"
         style="border: none;"
     ></iframe>
     """
 
+
 def generate_music_and_score(melody_file, prompt):
     if not MUSICGEN_API_URL:
         return None, "❌ 未配置 API URL，请检查 .env 文件"