fix(adguardhome-sync): replace ifconfig with hostname -I for IP detection

ifconfig is not available on modern Debian systems (net-tools not
installed by default). Replace with hostname -I which is available
everywhere, with ip addr as fallback.

Fixes: #14257

CHANGELOG.md

@@ -466,6 +466,10 @@ Exercise vigilance regarding copycat or coat-tailing sites that seek to exploit
 - Matomo ([#14248](https://github.com/community-scripts/ProxmoxVE/pull/14248))
 - Storyteller ([#14122](https://github.com/community-scripts/ProxmoxVE/pull/14122))
 
+### 🧰 Tools
+
+  - Fix container count message in update-apps.sh [@Quotacious](https://github.com/Quotacious) ([#14265](https://github.com/community-scripts/ProxmoxVE/pull/14265))
+
 ## 2026-05-04
 
 ### 🚀 Updated Scripts

tools/addon/adguardhome-sync.sh

@@ -55,7 +55,7 @@ EOF
 # HELPER FUNCTIONS
 # ==============================================================================
 get_ip() {
- ifconfig | grep -v '127.0.0.1' | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -m1 -Eo '([0-9]*\.){3}[0-9]*' || echo "127.0.0.1"
+  hostname -I 2>/dev/null | awk '{print $1}' || ip -4 addr show scope global 2>/dev/null | awk '/inet / {print $2}' | cut -d/ -f1 | head -n1 || echo "127.0.0.1"
 }
 
 # ==============================================================================