Revert to the prune-cycle model for minimal nodes: the normal compose serves RPC with no --init.prune, and a generated .prune.yml runs --init.prune=minimal, driven periodically by prune-if-prunable (same mechanism as pruned/full). Minimal nodes are seeded from a pruned backup, then pruned to minimal. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>