[Bug]: config env variables are ignored again

[m9e]

Is there an existing issue for the same bug?

• I have checked the existing issues.

Describe the bug and reproduction steps

Try to set LLM_MAX_INPUT_TOKENS or similar via -e ; will not be respected

https://docs.all-hands.dev/modules/usage/llms docs some

This had come up before: #1711

but was fixed but is broken again.

OpenHands Installation

Docker command in README

OpenHands Version

0.14

Operating System

MacOS

Logs, Errors, Screenshots, and Additional Context

No response