## Summary
- Changes `ClientOptionsType.tools` from `Record<any, any>` to
`Record<LanguageKey, Record<string, Tool>>`
- This prevents bugs like the one fixed in #8406 where `tool.name` was
used instead of `tool.tool.name`
- The `any` type was escaping type checking entirely
## Test plan
- [x] `npm run ts-check` passes
- [x] `npm run test-min` passes
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
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