fix(settings): drop program-settings last-good cache and prefer montzar

Stale Redis overlay and SMS-origin-first fetch kept feature flags like customer_special_pricing false after SuperAdmin turned them on. Always fetch live and try adm.montzar.ir first.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Services/SuperAdminProgramSettingsClient.php

@@ -22,8 +22,21 @@ class SuperAdminProgramSettingsClient
 
     public const RETRY_ROUNDS = 3;
 
+    /** @var array{channel?: string, origin?: string, domain?: string}|null */
+    private ?array $lastFetchMeta = null;
+
+    /**
+     * @return array{channel?: string, origin?: string, domain?: string}
+     */
+    public function lastFetchMeta(): array
+    {
+        return $this->lastFetchMeta ?? [];
+    }
+
     public function fetchItems(): ?array
     {
+        $this->lastFetchMeta = null;
+
         $public = $this->fetchPublic();
         if ($public !== null) {
             return $public;
@@ -68,7 +81,12 @@ class SuperAdminProgramSettingsClient
                 }
 
                 $items = $this->extractItems($response->json());
-                if ($items !== null) {
+                if ($this->hasSettingRows($items)) {
+                    $this->lastFetchMeta = [
+                        'channel' => 'remote',
+                        'origin' => $origin,
+                    ];
+
                     return $items;
                 }
             } catch (\Throwable $e) {
@@ -96,16 +114,29 @@ class SuperAdminProgramSettingsClient
             foreach ($this->attemptOrigins() as $origin) {
                 try {
                     $response = Http::acceptJson()
-                        ->withHeaders(['Cache-Control' => 'no-store'])
+                        ->withHeaders([
+                            'Cache-Control' => 'no-store',
+                            'Pragma' => 'no-cache',
+                        ])
+                        ->withOptions(['http_errors' => false])
                         ->timeout(6)
-                        ->get($origin.self::PUBLIC_PATH, ['domain' => $domain]);
+                        ->get($origin.self::PUBLIC_PATH, [
+                            'domain' => $domain,
+                            '_ts' => (string) time(),
+                        ]);
 
                     if (! $response->successful() || ! $this->isJsonResponse($response)) {
                         continue;
                     }
 
                     $items = $this->extractItems($response->json());
-                    if ($items !== null) {
+                    if ($this->hasSettingRows($items)) {
+                        $this->lastFetchMeta = [
+                            'channel' => 'public',
+                            'origin' => $origin,
+                            'domain' => $domain,
+                        ];
+
                         return $items;
                     }
                 } catch (\Throwable $e) {
@@ -137,6 +168,9 @@ class SuperAdminProgramSettingsClient
     }
 
     /**
+     * اول montzar (منبع اصلی)، بعد origin/SMS صریح، بعد failover.
+     * قبلاً SMS اول بود و اگر رپلیکای کهنه جواب ۲۰۰ می‌داد، montzar هیچ‌وقت خوانده نمی‌شد.
+     *
      * @return list<string>
      */
     private function origins(): array
@@ -162,7 +196,16 @@ class SuperAdminProgramSettingsClient
             }
         }
 
-        return array_values(array_unique(array_merge($extra, $defaults)));
+        // montzar اول؛ extra فقط اگر هنوز در لیست نیست به انتها اضافه می‌شود
+        return array_values(array_unique(array_merge($defaults, $extra)));
+    }
+
+    /**
+     * @param  array<int, array<string, mixed>>|null  $items
+     */
+    private function hasSettingRows(?array $items): bool
+    {
+        return is_array($items) && $items !== [];
     }
 
     private function isJsonResponse($response): bool