fix(envoy): use trustedCIDRs instead of numTrustedHops for client IP detection

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

Author: Diaoul

kubernetes/apps/network/envoy-gateway/app/envoy.yaml

@@ -149,7 +149,8 @@ metadata:
 spec:
   clientIPDetection:
     xForwardedFor:
-      numTrustedHops: 1
+      trustedCIDRs:
+        - 10.42.0.0/16
   connection:
     bufferLimit: 4Mi
     maxAcceptPerSocketEvent: 0