v0.3.87 — group nodes advertise on the LAN (Bonjour instance-name fix)
Fixes co-resident group nodes never publishing their _._tcp Bonjour service (same instance name as the main node collided in the Network framework). A node that joins a cross-app group now actually advertises and meshes in that group. SYMCore unchanged — reuses the v0.3.86 xcframework. See CHANGELOG.md.