Fix grader_hard explanation scoring - fairer partial credit

Fix log format, timeout protection, SPEC.md, tests, max_steps=5, remove pycache

Removed file from github tracking

Deleted unnecessary files

fixing

some fixes

Add timeout protection against infinite loops, fix 500 errors

Improve LLM prompting and feedback handling

testing

Fix log format, add SPEC.md, tests, invalid action penalty, max_steps=5

info added

add some information

final testing...

fully tested

testing

Force update all files

Add homepage UI

Add root endpoint

Move Dockerfile to root for HF Spaces

Fix README metadata

Add HF Spaces metadata

Initial commit