Summary

Add Flower Addon to integrate Flower Federated Learning with OCM.

Features

• Declarative SuperNode deployment via OCM AddOnTemplate
• Automatic SuperNode registration with SuperLink
• Cluster scheduling via OCM Placement
• Horizontal scaling based on cluster status

Acceptance Criteria

• [x] Upstream PR merged to addon-contrib
• [x] SuperLink deploys on hub cluster
• [x] SuperNodes auto-deploy to managed clusters
• [x] Federated learning apps execute across clusters