feat(beatmap): implement get beatmap arrtibutes

app/fetcher/osu_dot_direct.py

@@ -0,0 +1,15 @@
+from __future__ import annotations
+
+from ._base import BaseFetcher
+
+from httpx import AsyncClient
+
+
+class OsuDotDirectFetcher(BaseFetcher):
+    async def get_beatmap_raw(self, beatmap_id: int) -> str:
+        async with AsyncClient() as client:
+            response = await client.get(
+                f"https://osu.direct/api/osu/{beatmap_id}/raw",
+            )
+            response.raise_for_status()
+            return response.text