Import issue history in backlog.md

backlog/tasks/ml-107 - Regular-job-to-cleanup-asset-cache.md

@@ -0,0 +1,28 @@
+---
+id: ML-107
+title: Regular job to cleanup asset cache
+status: Done
+assignee: []
+created_date: '2026-04-20 08:59'
+labels: []
+dependencies: []
+references:
+  - 'https://github.com/cloud8421/music_library/issues/59'
+priority: medium
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+_GitHub: created 2025-11-07 · updated 2025-11-07 · closed 2025-11-07_
+
+This query returns the hash of all orphan assets
+
+```sql
+SELECT hash
+FROM assets
+LEFT JOIN records on records.cover_hash == assets.hash
+LEFT JOIN artist_infos on artist_infos.image_data_hash == assets.hash
+WHERE records.id IS NULL AND artist_infos.id IS NULL;
+```
+<!-- SECTION:DESCRIPTION:END -->