feat: 拾取策略矩阵——桌面/视觉/窗口能力按类型显示拾取按钮（桌面拾取/屏幕框选/窗口列表）

src/renderer/src/panels/Properties.tsx

@@ -443,6 +443,8 @@ function FieldControl({
 }) {
   const raw = node.values[field.key] ?? field.defaultValue;
   const [picking, setPicking] = useState(false);
+  const isVisionTarget = /^(OcrOffline_|CV_)/.test(node.componentId);
+  const isWindowTarget = /^(Window_|System_ConnectRemoteDesktop)/.test(node.componentId);
 
   const insertVariable = (expression: string) => {
     const current = textOf(raw).trim();
@@ -489,6 +491,40 @@ function FieldControl({
       setPicking(false);
     }
   };
+  const pickRegionToField = async () => {
+    setPicking(true);
+    try {
+      const region = await window.rpa.desktop.pickRegion();
+      onChange(field.key, region.imagePath);
+      onToast("已框选并截图：" + region.width + "×" + region.height);
+    } catch (error) {
+      onToast(error instanceof Error ? error.message : String(error), "error");
+    } finally {
+      setPicking(false);
+    }
+  };
+
+  const pickWindowToField = async () => {
+    setPicking(true);
+    try {
+      const list = await window.rpa.desktop.pickWindowList();
+      if (!list.length) {
+        onToast("未找到可见窗口", "error");
+        return;
+      }
+      const numbered = list.map((w: { title: string }, i: number) => (i + 1) + ". " + w.title).join("\n");
+      const choice = prompt("选择窗口（输入编号）：\n" + numbered);
+      const idx = Number(choice) - 1;
+      if (Number.isInteger(idx) && list[idx]) {
+        onChange(field.key, list[idx].title);
+        onToast("已选择窗口：" + list[idx].title);
+      }
+    } catch (error) {
+      onToast(error instanceof Error ? error.message : String(error), "error");
+    } finally {
+      setPicking(false);
+    }
+  };
 
   if (field.widget === "boolean") {
     return (
@@ -549,6 +585,16 @@ function FieldControl({
           <VarMenu variables={variables} onPick={insertVariable} />
           <button type="button" className="mini-btn" onClick={() => void pickPath(field.widget === "folder")} title="浏览">
             <FolderOpen className="icon" style={{ width: 13, height: 13 }} />
+          {isVisionTarget && /image/i.test(field.key) && (
+            <button type="button" className="mini-btn" disabled={picking} onClick={() => void pickRegionToField()} title="屏幕框选区域并截图">
+              {picking ? "框选中" : "屏幕框选"}
+            </button>
+          )}
+          {isWindowTarget && /title/i.test(field.key) && (
+            <button type="button" className="mini-btn" disabled={picking} onClick={() => void pickWindowToField()} title="选择窗口">
+              {picking ? "选择中" : "选窗口"}
+            </button>
+          )}
           </button>
         </div>
       ) : field.widget === "element" ? (