fix: resolve multi-instance capability in proxy routes (fixes #33)

server/routes/sabnzbd.js

@@ -4,6 +4,16 @@ const axios = require('axios');
 const router = express.Router();
 const requireAuth = require('../middleware/requireAuth');
 const sanitizeError = require('../utils/sanitizeError');
+const { getSABnzbdInstances } = require('../utils/config');
+
+// Helper to get first SABnzbd instance
+function getFirstSABnzbdInstance() {
+  const instances = getSABnzbdInstances();
+  if (!instances || instances.length === 0) {
+    return null;
+  }
+  return instances[0];
+}
 
 /**
  * @openapi
@@ -32,11 +42,15 @@ router.use(requireAuth);
 
 // GET /api/sabnzbd/queue
 router.get('/queue', async (req, res) => {
+  const instance = getFirstSABnzbdInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'SABnzbd not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.SABNZBD_URL}/api`, {
+    const response = await axios.get(`${instance.url}/api`, {
       params: {
         mode: 'queue',
-        apikey: process.env.SABNZBD_API_KEY,
+        apikey: instance.apiKey,
         output: 'json'
       }
     });
@@ -72,11 +86,15 @@ router.get('/queue', async (req, res) => {
  */
 // GET /api/sabnzbd/history
 router.get('/history', async (req, res) => {
+  const instance = getFirstSABnzbdInstance();
+  if (!instance) {
+    return res.status(503).json({ error: 'SABnzbd not configured' });
+  }
   try {
-    const response = await axios.get(`${process.env.SABNZBD_URL}/api`, {
+    const response = await axios.get(`${instance.url}/api`, {
       params: {
         mode: 'history',
-        apikey: process.env.SABNZBD_API_KEY,
+        apikey: instance.apiKey,
         output: 'json',
         limit: req.query.limit || 50
       }