shadowdaoandClaude Opus 5
86aacbe1a8
Review found that a cluster of orphan nodes referencing only each other (no member's parent points outside the orphan set) made the reattach loop find zero tops and silently no-op, leaving the cluster unreachable while reporting repaired: []. Replaced the single-pass reattach with a loop that re-derives the unreachable set each round and force-reattaches one representative when no ordinary top exists, guaranteeing findUnreachableNodeIds is empty after repair. Adds 2-node/3-node cycle and mixed ordinary-subtree-plus-cycle tests; the original 11 tests are unchanged and still pass. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
