feat: 新增获取全量机构树的API，优化SignupModal和ManageListRemote组件的组织树交互逻辑

(cherry picked from commit a9b36884c3)

src/components/signup/SignupModal.vue

@@ -77,7 +77,14 @@
               </el-button>
               <el-button size="small" @click="resetOrg">重置</el-button>
             </div>
-            <el-tree class="org-tree" show-checkbox node-key="id" :data="orgList" :props="orgTreeProps" lazy
+            <el-tree
+              ref="orgTree"
+              class="org-tree"
+              show-checkbox
+              node-key="id"
+              :data="orgList"
+              :props="orgTreeProps"
+              lazy
               :load="loadOrgNodeFull" @check-change="onOrgCheckChange" :default-checked-keys="selectedOrgKeys" />
           </el-tab-pane>
 
@@ -573,13 +580,25 @@ export default {
       this.stuSelectRows = this.stuSelectRows.filter(
         (i) => (i.id || i.userId) !== (item.id || item.userId)
       );
+      // 同步左侧快速选人表格的勾选状态
+      this.$nextTick(() => {
+        this.syncStuTableSelection();
+      });
     },
     removeOrg(item) {
       this.deptList = this.deptList.filter((i) => i.id !== item.id);
       this.selectedOrgKeys = this.deptList.map((d) => d.id);
+      // 同步左侧组织树的勾选状态
+      if (this.$refs.orgTree && this.$refs.orgTree.setCheckedKeys) {
+        this.$refs.orgTree.setCheckedKeys(this.selectedOrgKeys);
+      }
     },
     removeAudience(item) {
       this.auditSelectRows = this.auditSelectRows.filter((i) => i.id !== item.id);
+      // 同步左侧受众表格的勾选状态
+      this.$nextTick(() => {
+        this.syncAudienceTableSelection();
+      });
     },
     submitAuth() {
       if (this.type === 2) {