Enhance receiving and sales management functionality

- Updated the getItems function in receivingController to include a division filter, allowing for more refined item retrieval based on division.
- Added state management for continuous input in EquipmentInfoPage, enabling users to clear forms after saving or keep them open for further entries.
- Implemented deletion functionality for selected customer mappings in SalesItemPage, improving data management capabilities.
- Enhanced ShippingOrderPage to visually indicate selected orders, improving user interaction and experience.

These changes collectively improve the efficiency and usability of the receiving and sales management features.

backend-node/src/controllers/receivingController.ts

@@ -783,7 +783,7 @@ export async function getShipments(req: AuthenticatedRequest, res: Response) {
 export async function getItems(req: AuthenticatedRequest, res: Response) {
   try {
     const companyCode = req.user!.companyCode;
-    const { keyword, page, pageSize } = req.query;
+    const { keyword, page, pageSize, division } = req.query;
     const currentPage = Math.max(1, Number(page) || 1);
     const limit = Math.min(500, Math.max(1, Number(pageSize) || 20));
     const offset = (currentPage - 1) * limit;
@@ -800,6 +800,12 @@ export async function getItems(req: AuthenticatedRequest, res: Response) {
       paramIdx++;
     }
 
+    if (division) {
+      conditions.push(`division ILIKE $${paramIdx}`);
+      params.push(`%${division}%`);
+      paramIdx++;
+    }
+
     const whereClause = conditions.join(" AND ");
     const pool = getPool();