Improve Lidarr error passthrough with endpoint and detailed 400 messages

server.js

@@ -182,17 +182,28 @@ async function lidarrRequest(method, endpoint, data, params) {
   if (!hasLidarrConfig()) {
     throw new Error('Lidarr-Konfiguration unvollstaendig.');
   }
-
-  const response = await axios({
-    method,
-    url: `${lidarrUrl}${endpoint}`,
-    headers: lidarrHeaders(),
-    data,
-    params,
-    timeout: 20000
-  });
-
-  return response.data;
+  try {
+    const response = await axios({
+      method,
+      url: `${lidarrUrl}${endpoint}`,
+      headers: lidarrHeaders(),
+      data,
+      params,
+      timeout: 20000
+    });
+    return response.data;
+  } catch (err) {
+    const status = err.response?.status || 500;
+    const body = err.response?.data;
+    const detail =
+      body?.message ||
+      body?.error ||
+      (Array.isArray(body) ? JSON.stringify(body) : typeof body === 'string' ? body : '') ||
+      err.message;
+    const wrapped = new Error(`Lidarr API ${method.toUpperCase()} ${endpoint} -> ${detail}`);
+    wrapped.status = status;
+    throw wrapped;
+  }
 }
 
 async function getSpotifyToken() {
@@ -796,7 +807,7 @@ app.post('/api/lidarr/send-album', async (req, res) => {
     const result = await processSendAlbum(req.body || {});
     res.json(result);
   } catch (err) {
-    res.status(500).json({ error: err.message });
+    res.status(err.status || 500).json({ error: err.message });
   }
 });
 
@@ -810,7 +821,7 @@ app.post('/api/lidarr/send-batch', async (req, res) => {
       const result = await processSendAlbum(item);
       results.push({ ok: true, result });
     } catch (err) {
-      results.push({ ok: false, error: err.message, item });
+      results.push({ ok: false, status: err.status || 500, error: err.message, item });
     }
   }
   res.json({ success: true, results });