proper fix plus delete artist actually removes files

src/migration/m20260325_000019_allow_duplicate_artist_names.rs

@@ -0,0 +1,59 @@
+use sea_orm_migration::prelude::*;
+
+#[derive(DeriveMigrationName)]
+pub struct Migration;
+
+#[async_trait::async_trait]
+impl MigrationTrait for Migration {
+    async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> {
+        // Drop the unique index on artist name — different artists can share a name
+        // (e.g., "Clara" the Italian singer and "Clara" the Brazilian singer)
+        manager
+            .drop_index(
+                Index::drop()
+                    .name("idx_artists_name_unique")
+                    .table(Artists::Table)
+                    .to_owned(),
+            )
+            .await?;
+
+        // Replace with a non-unique index for lookup performance
+        manager
+            .create_index(
+                Index::create()
+                    .name("idx_artists_name")
+                    .table(Artists::Table)
+                    .col(Artists::Name)
+                    .to_owned(),
+            )
+            .await
+    }
+
+    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
+        manager
+            .drop_index(
+                Index::drop()
+                    .name("idx_artists_name")
+                    .table(Artists::Table)
+                    .to_owned(),
+            )
+            .await?;
+
+        manager
+            .create_index(
+                Index::create()
+                    .name("idx_artists_name_unique")
+                    .table(Artists::Table)
+                    .col(Artists::Name)
+                    .unique()
+                    .to_owned(),
+            )
+            .await
+    }
+}
+
+#[derive(DeriveIden)]
+enum Artists {
+    Table,
+    Name,
+}

src/migration/mod.rs

@@ -17,6 +17,7 @@ mod m20260320_000015_add_subsonic_password;
 mod m20260323_000016_remove_orphaned_artists;
 mod m20260323_000017_create_work_queue_and_scheduler;
 mod m20260324_000018_add_track_tagged;
+mod m20260325_000019_allow_duplicate_artist_names;
 
 pub struct Migrator;
 
@@ -41,6 +42,7 @@ impl MigratorTrait for Migrator {
             Box::new(m20260323_000016_remove_orphaned_artists::Migration),
             Box::new(m20260323_000017_create_work_queue_and_scheduler::Migration),
             Box::new(m20260324_000018_add_track_tagged::Migration),
+            Box::new(m20260325_000019_allow_duplicate_artist_names::Migration),
         ]
     }
 }