refactor(util): 重构BeanContext接口及相关实现

将ContextUtils重命名为BeanContext，并统一客户端和服务端的实现
添加DefaultBeanContext作为默认实现
优化Inventory同步任务逻辑，支持WebSocket远程调用
更新tasker_mapper.json添加新的任务映射
移除未使用的syncInventory方法

server/src/main/java/com/ecep/contract/ui/Tasker.java

@@ -16,11 +16,13 @@ import com.ecep.contract.ds.company.service.CompanyService;
 import com.ecep.contract.ds.other.service.EmployeeService;
 import com.ecep.contract.ds.other.service.SysConfService;
 import com.ecep.contract.model.Employee;
+import com.ecep.contract.util.BeanContext;
+import com.ecep.contract.util.DefaultBeanContext;
 
 import lombok.Getter;
 import lombok.Setter;
 
-public abstract class Tasker<T> implements java.util.concurrent.Callable<T> {
+public abstract class Tasker<T> implements java.util.concurrent.Callable<T>, BeanContext {
     private static final Logger logger = LoggerFactory.getLogger(Tasker.class);
     @Setter
     protected java.util.function.Predicate<Message> messageHandler;
@@ -33,13 +35,16 @@ public abstract class Tasker<T> implements java.util.concurrent.Callable<T> {
     @Getter
     @Setter
     private Locale locale = Locale.getDefault();
-    private HashMap<Class<?>, Object> cachedMap = new HashMap<>();
+    private BeanContext beanContext;
     @Setter
     private Employee currentUser;
     @Setter
     @Getter
     private boolean cancelled = false;
 
+    public Tasker() {
+        beanContext = new DefaultBeanContext();
+    }
 
     public SysConfService getConfService() {
         return getCachedBean(SysConfService.class);
@@ -53,18 +58,12 @@ public abstract class Tasker<T> implements java.util.concurrent.Callable<T> {
         return getCachedBean(EmployeeService.class);
     }
 
-    protected <K> K getBean(Class<K> requiredType) throws BeansException {
-        return SpringApp.getBean(requiredType);
+    public <K> K getBean(Class<K> requiredType) throws BeansException {
+        return beanContext.getBean(requiredType);
     }
 
-    protected <K> K getCachedBean(Class<K> requiredType) {
-        @SuppressWarnings("unchecked")
-        K bean = (K) cachedMap.get(requiredType);
-        if (bean == null) {
-            bean = getBean(requiredType);
-            cachedMap.put(requiredType, bean);
-        }
-        return bean;
+    public <K> K getCachedBean(Class<K> requiredType) {
+        return beanContext.getCachedBean(requiredType);
     }
 
     public Employee getCurrentUser() {