PG

fix: correct language codes for translation files

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### Summary This PR fixes the incorrect language code used for . ### Changes - Renamed `README..md` → `README..md` - Updated all references in README.md and Translations.md - Verified that...

This PR adds a minimal TreeSpec implementation to dm_env to support structured action and observation specifications using Python dataclasses. This directly addresses Issue #13 ("Tree Spec"). ### ✔ What is...

## Title Fix generate_value() in BoundedArray to correctly sample within bounds ## Description This PR addresses Issue #12 ("generate_value"), where BoundedArray.generate_value() produced arrays filled with the minimum value instead of...