5b5eabf5db
Approving the same zigbee/zwave/proxmox devices onto a second design placed the nodes but drew no edges. _resolve_pending_links_for_ieee deleted each pending_device_link after materializing its edge, so the first approve consumed the whole topology and later approves had nothing to resolve. Links are topology, not one-shot: every importer wipes+reinserts its link set on each import, so they can safely persist across approvals. - keep the link rows (drop both db.delete(link) calls) - scope resolution to the target design (Node.ieee_address + design_id) so a re-approve links that canvas's nodes, not another's - thread design_id through all three approve call sites Existing links deleted by the old code do not come back on their own; a re-import repopulates them. ha-relevant: maybe