Add RL job config

Add chain log 589490 (cancellation)

Add chain log 589489

Add chain log 589488

Add parsed SkyRL metrics (steps 1-56, chain 589488/489/490)

a3 RL codenet-python-v2 export global_step_55 (CANCELLED mid-run; a3 series concluded; reward 0.754 / pass@8 0.953)

initial commit