Update to Python 3.14-alpine and refactor IP parsing

Bump Dockerfile base image from python:3.13.3-alpine to python:3.14-alpine for both build and runtime stages. Refactor IP address parsing in dashboard.py for improved clarity and variable naming.

docker/Dockerfile

@@ -55,7 +55,7 @@ RUN make && chmod +x wg*
 #
 
 # Use the python-alpine image for building pip dependencies
-FROM python:3.13.3-alpine AS pip-builder
+FROM python:3.14-alpine AS pip-builder
 
 ARG TARGETPLATFORM
 
@@ -91,7 +91,7 @@ RUN . /opt/wgdashboard/src/venv/bin/activate && \
 #
 
 # Running with the python-alpine image.
-FROM python:3.13.3-alpine AS final
+FROM python:3.14-alpine AS final
 LABEL maintainer="dselen@nerthus.nl"
 
 # Install only the runtime dependencies

src/dashboard.py

@@ -1238,8 +1238,9 @@ def API_ping_getAllPeersIpAddress():
                     ip = ipaddress.ip_network(x, strict=False)
                 except ValueError as e:
                     app.logger.error(f"Failed to parse IP address of {p.id} - {c.Name}")
-                if len(list(ip.hosts())) == 1:
-                    parsed.append(str(ip.hosts()[0]))
+                host = list(ip.hosts())
+                if len(host) == 1:
+                    parsed.append(str(host[0]))
             endpoint = p.endpoint.replace(" ", "").replace("(none)", "")
             if len(p.name) > 0:
                 cips[f"{p.name} - {p.id}"] = {