Fix END log format to match sample exactly :)

inference.py

@@ -44,7 +44,7 @@ def log_step(step, action, reward, done, error=None):
 
 def log_end(success, steps, score, rewards):
     rewards_str = ",".join(f"{r:.2f}" for r in rewards)
-    print(f"[END] success={str(success).lower()} steps={steps} score={score:.3f} rewards={rewards_str}", flush=True)
+    print(f"[END] success={str(success).lower()} steps={steps}  rewards={rewards_str}", flush=True)
 
 # ── Environment helpers ───────────────────────────────────────────────────────