fix(settings): fee only from fee_service_charge_percentage; deploy:tenant

Remove service_charge_percentage alias and config/fee.php fallback (empty → 0).
Move code-managed Montzar/price runtime keys to can_edit=1 in deploy SQL.
Add settings:deploy and deploy:tenant artisan commands for server deploy.
Advanced admin settings merge runtime keys from local DB; block manual edits.

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

app/Services/ConfigService.php

@@ -197,17 +197,15 @@ class ConfigService
         return max(0.0, (float) $this->get('montzar_diff', 0));
     }
 
-    /** درصد کارمزد سفارش — fee_service_charge_percentage، service_charge_percentage، config/fee.php */
+    /** درصد کارمزد سفارش — فقط fee_service_charge_percentage؛ خالی = ۰ */
     public function orderServiceChargePercentage(): float
     {
-        foreach (['fee_service_charge_percentage', 'service_charge_percentage'] as $key) {
-            $raw = $this->getString($key, '');
-            if ($raw !== '') {
-                return $this->normalizeServiceChargeRatio((float) $raw);
-            }
+        $raw = trim($this->getString('fee_service_charge_percentage', ''));
+        if ($raw === '') {
+            return 0.0;
         }
 
-        return $this->normalizeServiceChargeRatio((float) config('fee.service_charge_percentage', 0));
+        return $this->normalizeServiceChargeRatio((float) $raw);
     }
 
     /**