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

Claude a55f68f0bc feat(fabric): hard anti-OOM via declared ModuleManifest.resources.vram_mb + pytest wiring 1 mese fa
agent a55f68f0bc feat(fabric): hard anti-OOM via declared ModuleManifest.resources.vram_mb + pytest wiring 1 mese fa
control a55f68f0bc feat(fabric): hard anti-OOM via declared ModuleManifest.resources.vram_mb + pytest wiring 1 mese fa
shared a55f68f0bc feat(fabric): hard anti-OOM via declared ModuleManifest.resources.vram_mb + pytest wiring 1 mese fa
tests a55f68f0bc feat(fabric): hard anti-OOM via declared ModuleManifest.resources.vram_mb + pytest wiring 1 mese fa
e2e-test.sh a55f68f0bc feat(fabric): hard anti-OOM via declared ModuleManifest.resources.vram_mb + pytest wiring 1 mese fa