Updated grader values

Fix server.py, expand tasks to 40, add tests, clean observation schema

fix indentation in main loop

fix indentation in main loop

fix step format, add tasks endpoint back

fix inference to handle new reset response format

fix server entry point

Make inference fallback to offline SQL correction

Fix inference startup and healthcheck compatibility

force clean exit code 0

error handling in inference.py

update ENV_URL to SyncShift space

initial submission