Drone Surveillance Ready

Add **detailed PBR textures** to the futuristic reconnaissance drone: apply brushed metal for the main body, carbon-fiber insets on rotor arms, matte polymer for joints, and emissive cyan strips along sensors. Include dust and scratch masks for realism, using roughness variation to simulate wear. Ensure seamless 4K textures with albedo, roughness, metallic, normal, and AO maps.