-เชื่อมโยง api search กับ frontend

-ปรับปรุงระบบ state
-เพิ่ม ระบบ pipe dtmtodatetime

accounting-ng-nuttakit/src/app/pipe/dtmtodatetime.pipe.ts

@@ -0,0 +1,24 @@
+import { Pipe, PipeTransform } from '@angular/core';
+
+@Pipe({
+  name: 'dtmtodatetime',
+  standalone: false
+})
+export class AccDateFormatPipe implements PipeTransform {
+
+  transform(value: string | number): string {
+    if (value === null || value === undefined) return '';
+
+    const str = value.toString();
+    if (str.length !== 12) return str;
+
+    const dd = str.slice(0, 2);
+    const mm = str.slice(2, 4);
+    const yyyy = str.slice(4, 8);
+    const hh = str.slice(8, 10);
+    const min = str.slice(10, 12);
+
+    return `${dd}/${mm}/${yyyy} ${hh}:${min}`;
+  }
+
+}