feat(api): fetch listens from spotify

src/music-library/artist.entity.ts

@@ -0,0 +1,21 @@
+import { Entity, PrimaryGeneratedColumn, Column, ManyToMany } from "typeorm";
+import { SpotifyLibraryDetails } from "src/sources/spotify/spotify-library-details.entity";
+import { Album } from "./album.entity";
+
+@Entity()
+export class Artist {
+  @PrimaryGeneratedColumn("uuid")
+  id: string;
+
+  @Column()
+  name: string;
+
+  @ManyToMany(
+    type => Album,
+    album => album.artists
+  )
+  albums: Album[];
+
+  @Column(type => SpotifyLibraryDetails)
+  spotify: SpotifyLibraryDetails;
+}