Optimize for Phase 2: 5 tasks, severity scoring, iterative refinement, 32 tests

Implement native urllib REST client to bypass sandbox missing dependencies and successfully hit LiteLLM proxy

Fix environment variable import caching and remove rogue proxy preflight

Fix API_KEY priority to ensure LiteLLM proxy tracking works

Safely wrap missing openai import inside main routine per validator instructions

Fix inference module imports for hackathon validation

Replace httpx with urllib to pass sandbox

fix: replace requests with httpx in inference to fix isolated validator failures

error resolve

exception handling

fix: update log_end score formatting to .3f to strictly match sample script implementation

fix: rewrite inference.py to emit mandatory [START]/[STEP]/[END] structured output

Initial code-review-environment submission

v1 code review env

environment and dependecies