fix: artwork cache never throws on body/disk failures

server/src/artwork.ts

@@ -22,6 +22,7 @@ export async function cacheArtwork(
 ): Promise<string | null> {
   if (!url) return null
   const key = createHash('sha256').update(url).digest('hex')
+  try {
     mkdirSync(artworkDir, { recursive: true })
     for (const ext of Object.values(EXT_BY_TYPE)) {
       if (existsSync(path.join(artworkDir, key + ext))) return key + ext
@@ -38,4 +39,7 @@ export async function cacheArtwork(
     const buf = Buffer.from(await res.arrayBuffer())
     await writeFile(path.join(artworkDir, key + ext), buf)
     return key + ext
+  } catch {
+    return null
+  }
 }

server/test/artwork.test.ts

@@ -75,4 +75,20 @@ describe('cacheArtwork', () => {
       rmSync(dir, { recursive: true, force: true })
     }
   })
+
+  it('returns null when the response body fails mid-download', async () => {
+    const dir = tempDir()
+    try {
+      const fetcher = (async () =>
+        new Response(new ReadableStream({
+          start(controller) {
+            controller.enqueue(new Uint8Array([0xff]))
+            controller.error(new TypeError('network error mid-body'))
+          },
+        }), { status: 200, headers: { 'content-type': 'image/jpeg' } })) as unknown as typeof fetch
+      expect(await cacheArtwork(dir, 'https://x/abort.jpg', fetcher)).toBeNull()
+    } finally {
+      rmSync(dir, { recursive: true, force: true })
+    }
+  })
 })