fix(api): try UniFi OS Integration API first for X-API-Key auth

The /api/self/sites and /proxy/network/api/self/sites endpoints belong
to the legacy session-cookie API — they don't accept X-API-Key auth and
return 401 for keys generated in UniFi OS → Control Plane → Integrations.

Adds /proxy/network/integration/v1/sites as the first endpoint tried,
which is the actual home of API keys. Integration response rows look
like { id, internalReference, name }; getSites normalizes them to the
legacy { name, desc } shape using internalReference as the slug so
downstream URLs (which build paths from $this->site) keep working.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/Services/UnifiApiClient.php

@@ -625,8 +625,14 @@ class UnifiApiClient
             $http = $this->buildRequest();
         }
 
-        // Try multiple URL patterns
+        // Endpoints, in preferred order:
+        //   1. UniFi OS Integration API — the one X-API-Key keys are issued for
+        //      (response shape: [{ id, internalReference, name }])
+        //   2. Legacy /proxy/network/api/self/sites — session-cookie API on
+        //      UniFi OS consoles (response: [{ name, desc, ... }])
+        //   3. Legacy /api/self/sites — standalone controller (no /proxy prefix)
         $paths = [
+            '/proxy/network/integration/v1/sites',
             '/proxy/network/api/self/sites',
             '/api/self/sites',
         ];
@@ -645,11 +651,28 @@ class UnifiApiClient
                     }
 
                     $data = $response->json('data', $response->json());
-                    if (is_array($data) && ! empty($data) && isset($data[0]['name'])) {
+                    if (! is_array($data) || empty($data)) {
+                        $lastError = "No sites in response from {$path}";
+                        continue;
+                    }
+
+                    // Integration API rows have `internalReference` (== legacy
+                    // site slug) and `name` (human-readable). Normalize to
+                    // the legacy {name, desc} shape so downstream code that
+                    // builds URLs with the site slug keeps working.
+                    if (isset($data[0]['internalReference'])) {
+                        $data = array_map(fn ($s) => [
+                            'name' => $s['internalReference'] ?? 'default',
+                            'desc' => $s['name'] ?? $s['internalReference'] ?? 'Default',
+                        ], $data);
+                    }
+
+                    if (isset($data[0]['name'])) {
                         Log::debug('unifi.sites_found', ['path' => $path, 'count' => count($data)]);
                         return $data;
                     }
-                    $lastError = "No sites in response from {$path}";
+
+                    $lastError = "Unexpected response shape from {$path}";
                 } else {
                     $lastError = "HTTP {$response->status()} on {$path}";
                 }