Consistent environment variable management

[anirudTT]

We’ve identified two issues that need alignment between TT-Studio and Inference Server artifact within the tt-studio repository ( artifact generated at runtime):

• An environment file is currently being generated at runtime in the root of the TT-Studio repository. This should not happen and needs to be fixed to avoid pollution in the repo root and the original app/.env file may be getting ignored .

• There’s a lack of synchronization between environment variables in TT-Studio and the Inference Server artifacts. For example, updating the Hugging Face token in TT-Studio does not propagate to the Inference Server environment, which creates inconsistency.

The goal is to have a unified environment variable management approach. Once we solve both, changing environment variables (like hf tokens) in TT-Studio will reflect properly across the Inference Server setup.