chore: 清理未使用的依赖

移除以下未使用的 npm 依赖：
 - fullcalendar（仅 CSS 引用，已删除相关 SCSS）
 - @splidejs/react-splide
 - @tanstack/react-virtual
 - @tippyjs/react
 - react-custom-scrollbars-2
 - react-force-graph-3d
 - react-just-parallax
 - react-responsive
 - react-scroll-into-view
 - recharts
 - styled-components

 同时清理：
 - craco.config.js 中的 @fullcalendar 分包配置
 - SCSS 中的 fullcalendar 样式文件和 import

src/assets/scss/soft-design-system-pro/plugins/pro/_fullcalendar-extend.scss

@@ -1,94 +0,0 @@
-/*!
-FullCalendar v5.6.0
-Docs & License: https://fullcalendar.io/
-(c) 2020 Adam Shaw
-*/
-
-// Creative Tim Changes
-
-.fc-theme-standard .fc-scrollgrid,
-.fc-scrollgrid {
-  border: none;
-}
-
-.fc-theme-standard td,
-.fc-theme-standard th {
-  border-color: $gray-200;
-}
-
-.fc-theme-standard thead tr th{
-  border-right: none;
-  border-left: none;
-}
-
-.fc-theme-standard td{
-  &:last-child{
-    border-right: none;
-  }
-}
-
-.fc-theme-standard tr{
-  &:last-child td{
-    border-bottom: none;
-  }
-}
-
-.fc-h-event{
-  border: none;
-}
-
-.fc-daygrid-block-event .fc-event-time,
-.fc-daygrid-block-event .fc-event-title{
-  font-weight: $font-weight-bold;
-  padding: $fc-event-title-padding-y $fc-event-title-padding-x;
-}
-
-.fc .fc-daygrid-body-natural .fc-daygrid-day-events{
-  margin-bottom: 0;
-}
-
-.fc .fc-col-header-cell-cushion{
-  font-size: $font-size-sm;
-  font-weight: $font-weight-bold;
-  color: $gray-500;
-}
-
-.fc .fc-daygrid-day-number{
-  color: $gray-700;
-  font-size: $font-size-sm;
-  font-weight: $font-weight-bold;
-  width: 100%;
-  text-align: center;
-}
-
-.fc .fc-toolbar-title{
-  font-size: $font-size-lg;
-}
-
-.fc .fc-button{
-  font-size: $font-size-sm;
-  padding-top: $spacer*0.25;
-  box-shadow: $btn-box-shadow;
-  transition: $btn-transition;
-  .fc-icon{
-    font-size: $font-size-sm;
-  }
-}
-
-.fc .fc-button-primary{
-  background-color: $secondary;
-  border-color: $secondary;
-  &:hover,
-  &:focus,
-  &:not(:disabled):active,
-  &:not(:disabled):active:focus{
-    transform: $btn-hover-transform;
-    box-shadow: $btn-hover-box-shadow;
-    background-color: $secondary;
-    border-color: $secondary;
-  }
-}
-
-.fc-event.fc-daygrid-event{
-  border-radius: $fc-daygrid-event-border-radius;
-}

src/assets/scss/soft-design-system-pro/plugins/pro/plugins-extend.scss

@@ -3,8 +3,6 @@
 @import "choices";
 @import "glidejs";
 @import "green-audio-player";
-@import "fullcalendar";
-@import "fullcalendar-extend";
 @import "datatable";
 @import "datatable-extend";
 @import "dragula";