list_topology_edges has no ORDER BY, so SQL row order is undefined.
After apply_attach_decky added a bridge edge to a second LAN, on
refetch the bridge edge could come back first — firstLanFor then
picked it as the decky's home and the visualization 'teleported' the
decky into the other LAN (the bug ANTI saw immediately after
connecting two deckies across LANs).
Hydration now prefers the non-bridge edge (is_bridge=false) as home.
apply_add_decky writes is_bridge=false for the original edge;
apply_attach_decky writes is_bridge=true for subsequent multi-homing
edges. Picking the non-bridge edge is stable across row reordering.
Two-pass implementation: pass 1 sets pinned homes (DMZ for gateways,
non-bridge for others); pass 2 fills any gap with the first edge
(legacy rows where is_bridge was never written).
anti
2731b2608b