fix: add NET_RAW capability to LND container for TLS cert generation

LND crashes with "netlinkrib: address family not supported by protocol"
in rootless podman because it needs NET_RAW to enumerate network
interfaces during TLS certificate generation. Added to capabilities
in config.rs, first-boot-containers.sh, and container-specs.sh.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/first-boot-containers.sh

@@ -607,7 +607,7 @@ LNDCONF
   $DOCKER run -d --name lnd --restart unless-stopped \
     --health-cmd="curl -sf --insecure https://localhost:8080/v1/getinfo || exit 1" --health-interval=120s --health-timeout=5s --health-retries=3 \
     --memory=$(mem_limit lnd) --network archy-net \
-    --cap-drop ALL --cap-add CHOWN --cap-add FOWNER --cap-add SETUID --cap-add SETGID --cap-add DAC_OVERRIDE \
+    --cap-drop ALL --cap-add CHOWN --cap-add FOWNER --cap-add SETUID --cap-add SETGID --cap-add DAC_OVERRIDE --cap-add NET_RAW \
     --security-opt no-new-privileges:true \
     -p 9735:9735 -p 10009:10009 -p 8080:8080 \
     -v /var/lib/archipelago/lnd:/root/.lnd \