feat: local storage logic & endpoints

app/domain/entities/track.py

@@ -0,0 +1,29 @@
+"""Track and Artist domain entities."""
+
+import datetime as dt
+import uuid
+from dataclasses import dataclass
+
+
+@dataclass(frozen=True, slots=True)
+class Artist:
+    id: uuid.UUID
+    name: str
+    created_at: dt.datetime
+    updated_at: dt.datetime
+
+
+@dataclass(frozen=True, slots=True)
+class Track:
+    id: uuid.UUID
+    title: str
+    artist_id: uuid.UUID
+    file_path: str
+    file_format: str
+    file_size: int
+    source: str
+    source_id: str
+    duration_seconds: int | None
+    metadata_status: str
+    created_at: dt.datetime
+    updated_at: dt.datetime