Add a dedicated submodule for Framework Laptop 16 AMD AI 300 Series with
NVIDIA dGPU (RTX 5070). This provides hybrid graphics configuration with
PRIME offload, allowing the AMD iGPU to run by default for better battery
life while making the NVIDIA dGPU available on demand via nvidia-offload.
Exposed as nixosModules.framework-16-amd-ai-300-series-nvidia
Co-authored-by: Daniel Schaefer <dhs@frame.work>
