Add Slovak (sk-SK) language support for voice dictation

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Voice dictation in Claude (and Claude's multilingual voice mode) currently does not support Slovak (sk-SK), even though the platform now supports 18+ languages including several neighboring/related Central European languages. As a Slovak speaker, I cannot use voice input in my native language, which forces me to either type everything manually or pay for a separate third-party dictation tool (~€100/year) just to get Slovak speech-to-text.

Similar requests exist for other under-supported languages, e.g. Hungarian (#57064) and Norwegian (#58331), both closed as out of scope for the claude-code CLI repo since the consumer app's voice dictation isn't part of this codebase — filing here anyway so the request is at least publicly tracked and can be pointed to.

Proposed Solution

Add Slovak (sk-SK) to the supported languages for the speech-to-text engine used in Claude's voice dictation / voice mode (mobile, desktop, and web apps), so Slovak speakers can dictate natively instead of relying on third-party apps.

Alternative Solutions

_No response_

Priority

High - Significant impact on productivity

Feature Category

Configuration and settings

Use Case Example

I use Claude daily for work (real estate / regional management) and would like to dictate notes, emails, and messages in Slovak instead of typing everything by hand or paying separately for a dedicated dictation app that supports Slovak.

Additional Context

Related requests for other missing languages: #57064 (Hungarian), #58331 (Norwegian). Slovak is closely related to Czech, which I believe is already supported or close to it — reusing/adapting an existing Slavic-language acoustic model could make this relatively low-effort.