fix(automations): log skipped sends with cooldown/max reason

Schedule runs that hit cooldown or max-send limits now write a skipped row to automation_sends so admins can see why no SMS was sent.

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

app/Services/Automation/AutomationSender.php

@@ -23,7 +23,10 @@ class AutomationSender
 
     public function send(Automation $auto, Customer $customer, string $channel, bool $force = false): bool
     {
-        if (! $this->maySend($auto, $customer, $channel, $force)) {
+        $skipReason = $this->skipReason($auto, $customer, $channel, $force);
+        if ($skipReason !== null) {
+            $this->log($auto, $customer, $channel, 'skipped', $skipReason);
+
             return false;
         }
 
@@ -72,13 +75,18 @@ class AutomationSender
     }
 
     public function maySend(Automation $auto, Customer $customer, string $channel, bool $force = false): bool
+    {
+        return $this->skipReason($auto, $customer, $channel, $force) === null;
+    }
+
+    private function skipReason(Automation $auto, Customer $customer, string $channel, bool $force = false): ?string
     {
         if (! $auto->usesChannel($channel)) {
-            return false;
+            return 'کانال غیرفعال';
         }
 
         if ($force) {
-            return true;
+            return null;
         }
 
         $max = $auto->max_sends;
@@ -90,7 +98,7 @@ class AutomationSender
                 ->where('status', 'sent')
                 ->count();
             if ($count >= (int) $max) {
-                return false;
+                return 'حداکثر ارسال برای این مشتری';
             }
         }
 
@@ -104,11 +112,11 @@ class AutomationSender
                 ->where('created_at', '>=', now()->subHours($cooldown))
                 ->exists();
             if ($recent) {
-                return false;
+                return "فاصلهٔ حداقل {$cooldown} ساعت از آخرین ارسال";
             }
         }
 
-        return true;
+        return null;
     }
 
     private function ensureAppNameFooter(string $message): string