Fabric GPU cluster scheduler — control plane + agent + shared schemas

Claude 4ab5e8db56 feat(fabric): report per-GPU memory.total -> node vram_total_mb -> CP total_gpu_capacity_mb il y a 1 mois
agent 4ab5e8db56 feat(fabric): report per-GPU memory.total -> node vram_total_mb -> CP total_gpu_capacity_mb il y a 1 mois
control 4ab5e8db56 feat(fabric): report per-GPU memory.total -> node vram_total_mb -> CP total_gpu_capacity_mb il y a 1 mois