GH-4452 Added Builder pattern support for `DeepSeekAssistantMessage`#4453

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sunyuhan1998 wants to merge 3 commits intospring-projects:mainfrom

sunyuhan1998:fix-issue-4452

Commits on Sep 23, 2025

feat: GH-4452 Added Builder pattern support for `DeepSeekAssistantMessage` and included corresponding unit tests.
sunyuhan1998
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Commits on Sep 24, 2025

fix: Fixed the bug in the `toString` method
sunyuhan1998
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Commits on Oct 4, 2025

fix: Temporarily remove the `builder()` method from `DeepSeekAssistantMessage` and modify related references to use `new` instead.
sunyuhan1998
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