photorealistic interior render of a contemporary living room and dining area strictly preserving the original image composition camera angle geometry layout furniture placement materials lighting and colors the scene includes an l shaped dark gray fabric sofa with cushions a round wooden coffee table a dining table with chairs a wooden shelving unit on the right wall wall art plants and wood flooring global illumination soft natural daylight mixed with warm artificial lighting all lighting must remain exactly as in the original image no intensity changes no color shift no added light sources except the one specified critical edit only activate a warm recessed led strip on the right side of the ceiling plafon the led must be subtle warm white around 3000k soft continuous linear light clean integration into the ceiling detail lighting control the led must emit very soft controlled light no overexposure no strong light spill no hotspots no harsh gradients the effect must be minimal and realistic critical restrictions do not add any led on the left side do not modify existing lights do not change lamp intensities do not alter shadows do not rebalance the scene lighting do not affect wall colors right wall protection the right wall must remain visually clean and uniform avoid visible light patches or strong gradients caused by the led keep the effect subtle and indirect strict preservation rules do not modify any furniture do not move objects do not change materials or textures do not alter reflections do not change composition or camera framing no additional objects no redesign no geometry changes ultra photorealistic render high quality pbr materials ray tracing global illumination soft shadows no stylization no artifacts clean controlled lighting