feat(mini-program): UI 优化和功能增强

- 更新全局样式（App.vue），优化玻璃态效果和颜色系统
- 添加星空背景动画效果
- 添加全局音乐播放器组件
- 优化 RecordView 记录页样式
- 修复 epicScript.js 中 selectScript 函数的参数格式
- 与原型设计和 Web 端 API 保持一致

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

mini-program/src/pages/main/RecordView.vue

@@ -189,8 +189,10 @@ onMounted(() => {
 .save-btn {
   width: 100%;
   height: 88rpx;
-  background: linear-gradient(90deg, rgba(147, 51, 234, 0.4), rgba(124, 58, 237, 0.4));
+  background: linear-gradient(135deg, rgba(147, 51, 234, 0.4), rgba(124, 58, 237, 0.4));
   border: 1px solid rgba(168, 85, 247, 0.3);
+  border-radius: 32rpx;
+  box-shadow: 0 8rpx 32rpx rgba(168, 85, 247, 0.2);
 }
 
 .save-btn.disabled {
@@ -235,9 +237,11 @@ onMounted(() => {
 
 .ai-reply {
   background: rgba(168, 85, 247, 0.08);
-  border: 1px solid rgba(168, 85, 247, 0.2);
+  border: 1px solid rgba(168, 85, 247, 0.25);
   border-radius: 20rpx;
   padding: 24rpx;
+  box-shadow: 0 0 20px rgba(168, 85, 247, 0.1);
+  margin-top: 16rpx;
 }
 
 .ai-header {