common: share LAN discovery settings

Move ping and Avahi/mDNS configuration into a shared LAN discovery module so kusanagi and enzo both publish their .local names, resolve each other on the LAN, and answer ping.

Keep mDNS scoped to the shared Wi-Fi interface instead of using Avahi's global firewall helper.

Assisted-by: OpenAI:gpt-5

1 files changed, 1 insertions, 0 deletions

diff --git a/common/default.nix b/common/default.nix
index 946b3a7..e977351 100644
--- a/common/default.nix
+++ b/common/default.nix
@@ -5,5 +5,6 @@
 {
   imports = [
     ./core.nix
+    ./lan-discovery.nix
   ];
 }