fix: correct order sync_status and historical import display

- Fix historical import to also update sync_status when it's out of
  sync with letzshop_state (e.g., confirmed orders showing as pending)
- Fix frontend to read stats from response.statistics nested object
- Orders with matching letzshop_state but wrong sync_status now get fixed

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/services/letzshop/order_service.py

@@ -622,11 +622,23 @@ class LetzshopOrderService:
 
             if existing_order:
                 # Check if we need to update (e.g., state changed)
-                if existing_order.letzshop_state != shipment.get("state"):
+                shipment_state = shipment.get("state")
+                if existing_order.letzshop_state != shipment_state:
                     self.update_order_from_shipment(existing_order, shipment)
                     stats["updated"] += 1
                 else:
-                    stats["skipped"] += 1
+                    # Also fix sync_status if it's out of sync with letzshop_state
+                    state_mapping = {
+                        "unconfirmed": "pending",
+                        "confirmed": "confirmed",
+                        "declined": "rejected",
+                    }
+                    expected_sync_status = state_mapping.get(shipment_state, "confirmed")
+                    if existing_order.sync_status != expected_sync_status:
+                        existing_order.sync_status = expected_sync_status
+                        stats["updated"] += 1
+                    else:
+                        stats["skipped"] += 1
             else:
                 # Create new order
                 self.create_order(vendor_id, shipment)

static/admin/js/marketplace-letzshop.js

@@ -469,8 +469,10 @@ function adminMarketplaceLetzshop() {
                     `/admin/letzshop/vendors/${this.selectedVendor.id}/import-history?state=confirmed`
                 );
 
-                this.historicalImportResult = response;
-                this.successMessage = `Historical import complete: ${response.imported} imported, ${response.updated} updated`;
+                // Stats are nested under 'statistics' key
+                this.historicalImportResult = response.statistics || response;
+                const stats = this.historicalImportResult;
+                this.successMessage = `Historical import complete: ${stats.imported} imported, ${stats.updated} updated`;
 
                 marketplaceLetzshopLog.info('Historical import result:', response);