Allow selenium namespace ingress to telephony for UI testing

apps/telephony/telephony.yaml

@@ -219,6 +219,14 @@ spec:
         - namespaceSelector:
             matchLabels:
               kubernetes.io/metadata.name: traefik-system
+    # Allow Selenium Grid for automated UI testing
+    - from:
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: selenium
+      ports:
+        - port: 5100
+          protocol: TCP
     # Allow SIP/RTP from external sources (Yealink phones, Twilio SIP trunk)
     - from:
         - ipBlock:
@@ -309,3 +317,4 @@ spec:
           port: 5100
   tls:
     secretName: telephony-internal-tls
+