🎨 feat(ui): enhance pricing components with improved icons and responsive design

- Replace copy button icon from semi-ui IconCopy to lucide-react Copy in PricingCardView
- Add conditional tooltip functionality to SelectableButtonGroup that only shows when text overflows
- Implement responsive table column behavior in PricingTableColumns with mobile-aware fixed positioning
- Use DOM-based overflow detection (scrollWidth vs clientWidth) for better performance
- Apply useIsMobile hook to conditionally set fixed: 'right' only on desktop devices

These changes improve user experience across different screen sizes and provide more consistent iconography throughout the pricing interface.

web/src/index.css

@@ -52,22 +52,6 @@ code {
 }
 
 /* ==================== 导航和侧边栏样式 ==================== */
-.semi-radio,
-.semi-tagInput,
-.semi-input-textarea-wrapper,
-.semi-navigation-sub-title,
-.semi-chat-inputBox-sendButton,
-.semi-page-item,
-.semi-navigation-item,
-.semi-tag-closable,
-.semi-input-wrapper,
-.semi-tabs-tab-button,
-.semi-select,
-.semi-button,
-.semi-datepicker-range-input {
-  border-radius: 10px !important;
-}
-
 .semi-navigation-item {
   margin-bottom: 4px !important;
   padding: 4px 12px !important;
@@ -778,4 +762,21 @@ html.dark .with-pastel-balls::before {
 .semi-card-header,
 .semi-card-body {
   padding: 10px !important;
+}
+
+/* ==================== 自定义圆角样式 ==================== */
+.semi-radio,
+.semi-tagInput,
+.semi-input-textarea-wrapper,
+.semi-navigation-sub-title,
+.semi-chat-inputBox-sendButton,
+.semi-page-item,
+.semi-navigation-item,
+.semi-tag-closable,
+.semi-input-wrapper,
+.semi-tabs-tab-button,
+.semi-select,
+.semi-button,
+.semi-datepicker-range-input {
+  border-radius: 10px !important;
 }