fix(adapter-claude): 支持适配器多实例启用

[Procyon-Nan]

在 Claude 适配器入口导出 reusable = true ，该变更使 Koishi 允许同一插件创建多份配置实例，避免第二份 Claude 配置被判定为不可重用而无法正常启用。

影响文件：packages/adapter-claude/src/index.ts

另外也对其他的adapter进行了一轮排查，没有发现类似问题

[coderabbitai]

Caution

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ℹ️ Recent review info

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Run ID: d168e368-516c-45f4-aa7f-09a0270a0c24

📥 Commits

Reviewing files that changed from the base of the PR and between 4351694 and 12e7be1.

📒 Files selected for processing (1)

• packages/adapter-claude/src/index.ts

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Walkthrough

Claude 适配器模块新增导出常量 reusable = true，用于标识该适配器支持可重用性。其余模块逻辑（apply 初始化、配置及 Schema 定义、依赖注入与插件元信息）保持不变。

Changes

Claude 适配器可重用性标记

层级 / 文件	摘要
导出可重用常量 packages/adapter-claude/src/index.ts	在模块顶层新增导出常量 reusable，赋值为 true，标识 Claude 适配器支持可重用性。

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Suggested reviewers

• dingyi222666

Poem

🐰 Claude 的旗帜升起来，
reusable 标记闪闪闪，
适配器今日添新衣，
可重用的梦想启航去！

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	标题准确地反映了变更内容，即为Claude适配器添加reusable标记以支持多实例启用。
Description check	✅ Passed	描述清晰地解释了变更目的、受影响的文件、多实例使用注意事项，以及作者的审查工作。
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[gemini-code-assist]

Code Review

This pull request enables multi-instance support for the Claude adapter by exporting reusable = true. However, a critical issue was identified: because logger is declared as a module-level global variable, initializing multiple instances will overwrite it, potentially causing unexpected behavior or memory leaks in older instances. It is recommended to avoid using a global logger and instead bind it to individual instances or pass the context directly.