Fixed the depth map visualization by applying correct normalization and gamma correction. All images were processed with a gamma value of 0.6.Looking good.

Z-Buffer Image. Looking good.

Rendered Scene Image.Render Time: 2 seconds with 16 samples per pixelSPP , multi-threaded, on IntelR CoreTM Ultra 9 285H, 16 Cores 16 Threads. 32 Gigabytes DDR5 7467 MT/s Memory