refactor(media): unify media identity and chain responsibilities

app/chain/acoustid.py

@@ -0,0 +1,30 @@
+from pathlib import Path
+from typing import Optional, Union
+
+from app.chain import ChainBase
+
+
+class AcoustIdChain(ChainBase):
+    """AcoustID 音频指纹识别来源链。"""
+
+    def identify_music_by_fingerprint(
+            self,
+            path: Union[str, Path],
+    ) -> Optional[str]:
+        """根据本地音频指纹返回 MusicBrainz Recording ID。"""
+        result = self.run_module(
+            "identify_music_by_fingerprint",
+            path=Path(path),
+        )
+        return str(result).strip() if result else None
+
+    async def async_identify_music_by_fingerprint(
+            self,
+            path: Union[str, Path],
+    ) -> Optional[str]:
+        """异步根据本地音频指纹返回 MusicBrainz Recording ID。"""
+        result = await self.async_run_module(
+            "async_identify_music_by_fingerprint",
+            path=Path(path),
+        )
+        return str(result).strip() if result else None