fix(adapter-deepseek): set discovered context window

[dingyi222666]

This pr fixes DeepSeek model metadata for models returned by the provider API.

Bug fixes

• Set the discovered DeepSeek model context window to 1,000,000 tokens.

Other Changes

• Bump koishi-plugin-chatluna-deepseek-adapter to 1.4.0-alpha.9.

Validation

• yarn lint-fix (0 errors, existing max-len warnings only)

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: ef06aac5-fa73-461f-a9cb-63bf53a1fd38

📥 Commits

Reviewing files that changed from the base of the PR and between 4ace648 and 31ca638.

⛔ Files ignored due to path filters (1)

• packages/adapter-deepseek/package.json is excluded by !**/*.json

📒 Files selected for processing (1)

• packages/adapter-deepseek/src/client.ts

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概览

该 PR 在 DeepSeek 适配器的客户端中为模型刷新方法补充了显式的最大令牌上限配置，将 maxTokens 字段设置为 1_000_000。

变更内容

DeepSeek 模型最大令牌配置

层 / 文件	摘要
ModelInfo 最大令牌字段补充 packages/adapter-deepseek/src/client.ts	在 refreshModels() 方法返回的 ModelInfo 对象中新增 maxTokens: 1_000_000 字段，显式指定 DeepSeek 模型的最大令牌限制。

估计代码审查工作量

🎯 1 (极简) | ⏱️ ~2 分钟

可能相关的 PR

• ChatLunaLab/chatluna#905：同样修改 packages/adapter-deepseek/src/client.ts 中的 refreshModels() 方法以设置 DeepSeek 最大令牌限制。

诗

🐰 一只小兔在代码森林里，
为 DeepSeek 模型添上令牌的翅膀，
一百万的上限闪闪发光，
让对话流畅如丝线轻扬。
简单的改动，大大的智慧！✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	PR标题清晰准确地总结了主要变更：为DeepSeek适配器的已发现模型设置上下文窗口大小。
Description check	✅ Passed	PR描述与代码变更高度相关，清楚地说明了修复内容（设置DeepSeek模型上下文为1,000,000 tokens）及其他关联变更。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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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🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/ds-context-window

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[gemini-code-assist]

Code Review

This pull request bumps the version of the DeepSeek adapter and introduces a hardcoded maxTokens limit of 1,000,000. However, this limit is too high and inaccurate for DeepSeek models, which support 128,000 tokens for LLMs and 8,192 tokens for embeddings. It is recommended to set the maxTokens conditionally based on the model type to avoid API errors and context overflow.

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