feat(server): overlay admin get_settings from SuperAdmin program-settings

Fetch public program-settings with 3-origin retry and no Laravel cache so
local DB settings stay in sync with the sold version.

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

app/Services/ConfigService.php

@@ -24,6 +24,11 @@ class ConfigService
      */
     public function get(string $key, $default = null)
     {
+        $fromSa = $this->valueFromSuperAdmin($key, $default);
+        if ($fromSa !== '__sa_miss__') {
+            return $fromSa;
+        }
+
         try {
             $row = Setting::where('key', $key)->first();
 
@@ -39,6 +44,40 @@ class ConfigService
         return $fromFile !== null ? $fromFile : $default;
     }
 
+    /**
+     * مقدار سوپرادمین اگر کلید در overlay باشد؛ وگرنه سنتنل miss.
+     *
+     * @return mixed
+     */
+    private function valueFromSuperAdmin(string $key, $default)
+    {
+        try {
+            $row = app(SuperAdminProgramSettingsOverlay::class)->row($key);
+        } catch (\Throwable $e) {
+            return '__sa_miss__';
+        }
+
+        if ($row === null) {
+            return '__sa_miss__';
+        }
+
+        $active = $row['is_active'] ?? 1;
+        if ($active === 0 || $active === false || $active === '0') {
+            $fromFile = config("price_providers.{$key}");
+
+            return $fromFile !== null ? $fromFile : $default;
+        }
+
+        $value = $row['value'] ?? null;
+        if ($value === null || $value === '') {
+            $fromFile = config("price_providers.{$key}");
+
+            return $fromFile !== null ? $fromFile : $default;
+        }
+
+        return $value;
+    }
+
     public function getString(string $key, string $default = ''): string
     {
         $value = $this->get($key, $default);