fix(desktop): 네이티브 위젯 picker를 창 전체 뷰로 전환

portal/overlay 대신 widget-main에서 picker 전용 화면으로 전환해
macOS·Windows WebView 모두에서 위젯 선택 팝업이 보이도록 합니다.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/styles/widgetDashboard.css

@@ -1317,6 +1317,29 @@ html.fw-native-widget .wd-picker-native-body {
   overflow-y: auto;
 }
 
+/* 네이티브 위젯 창 — picker가 창 전체를 차지 (overlay/portal 미사용) */
+html.fw-native-widget .fw-widget-native-root--picker {
+  overflow: hidden;
+}
+
+html.fw-native-widget .wd-picker-native-root {
+  flex: 1;
+  min-height: 0;
+  width: 100%;
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+  background: var(--bg, #1a1b26);
+}
+
+html.fw-native-widget .wd-picker-native-root .wd-picker-native-shell {
+  flex: 1;
+  min-height: 0;
+  border-radius: 0;
+  border: none;
+  box-shadow: none;
+}
+
 html.fw-native-widget .wd-picker-native-loading {
   position: fixed;
   inset: 0;
@@ -1329,16 +1352,6 @@ html.fw-native-widget .wd-picker-native-loading {
   font-size: 13px;
 }
 
-html.fw-native-widget.fw-native-picker-open .fw-widget-native-root .fw-window {
-  visibility: hidden;
-  pointer-events: none;
-}
-
-html.fw-native-widget.fw-native-picker-open .wd-picker-native-overlay {
-  padding: 0;
-  background: var(--bg, #1a1b26);
-}
-
 .bps-page--wd-no-left .bps-side-wrap--left,
 .bps-page--wd-no-left .bps-side-wrap--left + .bps-splitter {
   display: none !important;