deploy(dns): pin DN-1 rate-limit image

apps/fc-dns/fc-dns.yaml

@@ -85,6 +85,13 @@ data:
               "Distribution": "Warn"
             }
           }
+        },
+        "Dns": {
+          "RateLimits": {
+            "PermitLimit": 60,
+            "WindowSeconds": 60,
+            "QueueLimit": 0
+          }
         }
       }
     }
@@ -122,7 +129,7 @@ spec:
         fsGroup: 1654
       containers:
         - name: dns-web
-          image: localhost/fc-dns-web:v20260615-phase0-hybrid-f77fb94
+          image: localhost/fc-dns-web:v20260615-dn1-6bb16e5
           imagePullPolicy: Never
           securityContext:
             readOnlyRootFilesystem: true
@@ -356,7 +363,7 @@ spec:
         fsGroup: 1654
       containers:
         - name: dns-acme-webhook
-          image: localhost/fc-dns-acme-webhook:v20260615-phase0-hybrid-f77fb94
+          image: localhost/fc-dns-acme-webhook:v20260615-dn1-6bb16e5
           imagePullPolicy: Never
           securityContext:
             readOnlyRootFilesystem: true