Fix direct punctuation commits with marked text

[shangyingbin]

Summary

• Add a compatibility option for direct punctuation commits.
• Pre-mark direct punctuation keys before processing them on the next run loop so clients that require a marked-text phase can accept the committed full-width punctuation.
• Enable the compatibility path by default in squirrel.yaml.

Testing

• Built and packaged locally with make clean-package package ARCHS="arm64 x86_64" BUILD_UNIVERSAL=1.
• Installed the generated package locally and verified the installed binary matches the build output.
• Tested direct punctuation input in WeChat, DingTalk, Notes, macOS Terminal, and VSCode integrated terminal for one day without finding regressions.

[lotem]

看着有點兒像 #1171

不太看好。
能否說明解決什麼問題，爲什麼要這麼複雜？

在 Terminal.app 裏上屏標點我試着沒問題的。

[shangyingbin]

系统自带的terminal app中没有问题，但是在vscode中开启的终端，无法输入中文符号。

[shangyingbin]

如果认为不应合入，就丢弃吧。我本地打一个包自己用就好

[lotem]

需求了解了。考慮收錄 PR #1171 ——他有兩點優勢：

1. 限定延遲提交機制生效的客戶端應用；
2. 不根據字符種類做經驗判斷，直接提交的字符可由方案任意設定，不限於標點符號。