feat: add get warranty detail

src/modules/warranty/warranty.service.ts

@@ -61,6 +61,15 @@ class WarrantyService {
   async getPendingWarranties() {
     return await this.warrantyRepo.pendingWarranties();
   }
+
+  async getWarranty(id: number) {
+    const warranty = await this.warrantyRepo.model.findById(id);
+    if (!warranty) throw new BadRequestError(CommonMessage.NotValidId);
+
+    return {
+      warranty,
+    };
+  }
 }
 
 export { WarrantyService };