fix: route /v2 and /health to artifactapi API service (#200)

The v3 route migration (#198) split routes into /api → API and / → UI, but /v2/ (Docker Registry V2 API) and /health now hit the UI catch-all instead of the API backend.

This breaks `docker pull artifactapi.k8s.syd1.au.unkin.net/...` with context deadline exceeded.

Adds /v2 and /health prefix rules before the UI catch-all.

Reviewed-on: #200
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>

apps/base/artifactapi/httproute.yaml

@@ -47,6 +47,26 @@ spec:
         - path:
             type: PathPrefix
             value: /api
+    - backendRefs:
+        - group: ""
+          kind: Service
+          name: artifactapi
+          port: 80
+          weight: 1
+      matches:
+        - path:
+            type: PathPrefix
+            value: /v2
+    - backendRefs:
+        - group: ""
+          kind: Service
+          name: artifactapi
+          port: 80
+          weight: 1
+      matches:
+        - path:
+            type: PathPrefix
+            value: /health
     - backendRefs:
         - group: ""
           kind: Service