Use linear transformation to strictly exclude 0.0 and 1.0 from score

Fix score boundaries to fall strictly within (0, 1) range

Revert task scores to decimal range (0.0-1.0)

Refactor scores from decimal (0.0-1.0) to integer (0-100)

fix: make /reset request body optional to avoid Pydantic validation error

fix: resolve openEnv reset response inconsistency and port mismatch

Move app.py to root directory