feat(v1.5): complete phases 40-43 workflow cleanup

src/Modules/Orders/OrdersRepository.php

@@ -759,6 +759,59 @@ final class OrdersRepository
         ]);
     }
 
+    /**
+     * @param array<string, mixed> $details
+     */
+    public function shouldSkipDuplicateImportActivity(int $orderId, array $details): bool
+    {
+        if ($orderId <= 0 || !empty($details['created'])) {
+            return false;
+        }
+
+        $sourceOrderId = trim((string) ($details['source_order_id'] ?? ''));
+        $sourceUpdatedAt = trim((string) ($details['source_updated_at'] ?? ''));
+        $trigger = trim((string) ($details['trigger'] ?? ''));
+
+        if ($sourceOrderId === '' || $sourceUpdatedAt === '' || $trigger === '') {
+            return false;
+        }
+
+        try {
+            $stmt = $this->pdo->prepare(
+                'SELECT details_json
+                FROM order_activity_log
+                WHERE order_id = :order_id
+                  AND event_type = :event_type
+                ORDER BY created_at DESC, id DESC
+                LIMIT 1'
+            );
+            $stmt->execute([
+                'order_id' => $orderId,
+                'event_type' => 'import',
+            ]);
+            $lastDetailsJson = $stmt->fetchColumn();
+        } catch (Throwable) {
+            return false;
+        }
+
+        if (!is_string($lastDetailsJson) || trim($lastDetailsJson) === '') {
+            return false;
+        }
+
+        $lastDetails = json_decode($lastDetailsJson, true);
+        if (!is_array($lastDetails) || !empty($lastDetails['created'])) {
+            return false;
+        }
+
+        $lastSourceOrderId = trim((string) ($lastDetails['source_order_id'] ?? ''));
+        $lastSourceUpdatedAt = trim((string) ($lastDetails['source_updated_at'] ?? ''));
+        $lastTrigger = trim((string) ($lastDetails['trigger'] ?? ''));
+
+        return $lastSourceOrderId === $sourceOrderId
+            && $lastSourceUpdatedAt === $sourceUpdatedAt
+            && $lastTrigger === $trigger;
+    }
+
     public function recordStatusChange(
         int $orderId,
         ?string $fromStatus,