fixes + theme

public/plugins/chat/backend.php

@@ -132,7 +132,8 @@ PluginManager::instance()->onApiRoute(function (string $route, string $method) {
         }
 
         $envelope = chatEncrypt($body, $r['key']);
-        $ch = curl_init(rtrim($r['url'], '/') . '/api/chat');
+        $relayChatUrl = rtrim($r['url'], '/') . '/api/chat';
+        $ch = curl_init($relayChatUrl);
         curl_setopt_array($ch, [
             CURLOPT_RETURNTRANSFER => true,
             CURLOPT_POST => true,
@@ -152,7 +153,12 @@ PluginManager::instance()->onApiRoute(function (string $route, string $method) {
             $relayErr = '';
             $decoded = json_decode($response, true);
             if (is_array($decoded) && !empty($decoded['error'])) $relayErr = ' — ' . $decoded['error'];
-            chatJson(['ok' => false, 'error' => "relay returned HTTP $status$relayErr"]);
+            chatJson([
+                'ok' => false,
+                'error' => "relay returned HTTP $status$relayErr",
+                'url' => $relayChatUrl,
+                'response_body' => is_string($response) ? substr($response, 0, 500) : null,
+            ]);
         }
 
         $resData = json_decode($response, true);