feat: add three-surface RPA locator standards and examples

examples/real_desktop_rpa/assets/element-map.sample.yaml

@@ -0,0 +1,64 @@
+source_case: add-friend-wecom
+status: verified_source_redacted_example
+surface: windows
+driver: uiautomation
+elements:
+  - logical_name: main_window
+    purpose: 企业微信主窗口
+    scope:
+      process_name: WXWork
+    primary_locator:
+      window_class: WeWorkWindow
+      title: 企业微信
+    expected_count: 1
+    postcondition: UIA root 可读取
+    replace_in_new_skill: true
+
+  - logical_name: contacts_entry
+    purpose: 打开通讯录
+    scope:
+      logical_parent: main_window
+    primary_locator:
+      name: org_op_new
+      control_type: TreeItem
+    expected_count: 1
+    postcondition: 通讯录业务面板出现
+    replace_in_new_skill: true
+
+  - logical_name: add_customer_window
+    purpose: 添加客户窗口
+    scope:
+      process_name: WXWork
+    primary_locator:
+      window_class: SearchExternalsWnd
+      title: 添加客户
+    expected_count: 1
+    postcondition: search_input 可定位
+    replace_in_new_skill: true
+
+  - logical_name: search_input
+    purpose: 输入待搜索账号
+    scope:
+      logical_parent: add_customer_window
+      ancestor_name: search_layout
+    primary_locator:
+      name: searchedit
+    expected_count: 1
+    ready_condition:
+      visible: true
+      enabled: true
+    postcondition: 结果列表或用户不存在弹窗出现
+    replace_in_new_skill: true
+
+  - logical_name: verify_message_input
+    purpose: 填写添加验证语
+    scope:
+      window_class: InputReasonWnd
+      title_any:
+        - 输入认证信息
+        - 发送添加邀请
+    primary_locator:
+      name: name_edit
+    expected_count: 1
+    postcondition: 输入值可读取或发送按钮可用
+    replace_in_new_skill: true

examples/real_desktop_rpa/assets/selector-capture.sample.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  脱敏教学摘录：展示“拾取器长路径”而非可直接复制的生产 selector。
+  生产代码应保留稳定窗口、业务父容器和叶子属性，删除无业务含义的深层 index。
+-->
+<selector name="search_input" source="inspector-export">
+  <window process="WXWork" class="SearchExternalsWnd" title="添加客户" />
+  <uia name="content_container" index="1" />
+  <uia name="search_layout" index="0" />
+  <uia name="inner_search_layout" index="1" />
+  <uia name="searchedit" index="1" />
+</selector>