Switch to dart-sass and make deploy script fail-safe

node-sass 4.x cannot build on arm64/Node 16. Use sass with ::v-deep
instead of /deep/, and only replace the server dist after the upload
is unpacked and verified.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/views/groupChatManagement/components/UpdateImgroupmember.vue

@@ -155,16 +155,16 @@ export default {
 
 <style lang="scss" scoped>
 .updateGroupChat {
-  /deep/ .el-date-editor.el-input {
+  ::v-deep .el-date-editor.el-input {
     width: 200px;
   }
-  /deep/ .el-input-number__decrease {
+  ::v-deep .el-input-number__decrease {
     display: none;
   }
-  /deep/ .el-input-number__increase {
+  ::v-deep .el-input-number__increase {
     display: none;
   }
-  /deep/ .el-input__inner {
+  ::v-deep .el-input__inner {
     padding-left: 10px;
     padding-right: 10px;
     text-align: left;