fix(particle): 修复二维粒子重新开启预览后不播放的问题

[zenoskongfu]

• 解决的问题：2D 粒子关闭 Preview 后重新开启，粒子无法恢复播放，需要重新选中节点才会出现。
• 解决方式：调整 Preview setter 的执行顺序，开启时先更新预览状态，再启动粒子，避免被旧的关闭状态拦截；关闭时保留原有清理顺序，并补充连续开关和焦点切换的回归测试。

[github-actions]

Code Size Check Report

Wechat (WASM)	Before	After	Diff
2D Empty (legacy pipeline)	1015436 bytes	1015436 bytes	✅ 0 bytes
2D All (legacy pipeline)	2683579 bytes	2683601 bytes	⚠️ +22 bytes
2D All (new pipeline)	2775832 bytes	2775854 bytes	⚠️ +22 bytes
(2D + 3D) All	10033446 bytes	10033468 bytes	⚠️ +22 bytes

Web (WASM + ASMJS)	Before	After	Diff
(2D + 3D) All	16869864 bytes	16869886 bytes	⚠️ +22 bytes

Interface Check Report

This pull request does not change any public interfaces !