支持企微通讯录缺失手机号（07-26-internal-ops-recovery-baseline）

client/src/api/employees.ts

@@ -91,7 +91,7 @@ export type EmployeeSummary = {
   id: string;
   employeeNo: string;
   name: string;
-  phone: string;
+  phone: string | null;
   email: string;
   status: EmployeeStatus;
   departmentId: string;
@@ -231,7 +231,7 @@ export type EmployeeProfile = {
     id: string;
     employeeNo: string;
     name: string;
-    phone: string;
+    phone: string | null;
     email: string;
     status: EmployeeStatus;
     employmentStatus: EmployeeEmploymentStatus;