Netmaker add-on: pull prebuilt image from Gitea registry

Home Assistant add-on that joins the instance to a Netmaker network via
netclient. Distributed as a repository add-on using a prebuilt arm64 image
(gitea.savant.io/homeassistant/netmaker) to avoid local buildx.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

netmaker/rootfs/etc/s6-overlay/s6-rc.d/local-network/run

@@ -0,0 +1,29 @@
+#!/command/with-contenv bashio
+# shellcheck shell=bash
+export LOG_FD
+# ==============================================================================
+# Wait for the local network (default HA interface) to be ready
+# ==============================================================================
+
+readonly WAIT_DELAY=5   # 5s
+readonly WAIT_COUNT=60  # 60*5s = 300s = 5m
+
+declare wait_counter=0
+
+# Some services need a working local network to function properly.
+# They can mark this service as dependency, and wait for the successful startup.
+
+# Until HA has no default interface, we wait a little
+while ! bashio::api.supervisor GET "/network/interface/default/info" false &> /dev/null; do
+  if (( wait_counter++ == WAIT_COUNT )); then
+    # We emit only a warning to let the app start, maybe this is the only connection to access the device, better to start than not.
+    # Let netclient figure out a way to connect to the network if the local network is temporarily down.
+    bashio::log.warning "Local network (default Home Assistant interface) is unreachable"
+    break
+  fi
+  bashio::log.info "Waiting for the local network (default Home Assistant interface) to be ready..."
+  sleep $WAIT_DELAY
+done
+if (( wait_counter != 0 && wait_counter <= WAIT_COUNT )); then
+  bashio::log.info "Local network is ready"
+fi