v23.0_002: GNN Production Deployment and Ensemble Integration

Date: 2026-06-04 Version: v23.0 Task: t_v23_2 Device: CUDA (NVIDIA RTX 4060 Ti) Framework: PyTorch 2.11 + PyTorch Geometric 2.7

I. EXECUTIVE SUMMARY

Deployed the trained GNN model (GraphSAGE, AUC-ROC 0.601 in v22 CV) into a production ensemble with Temporal Engine V5. Fi