refactor: simplify artifactapi routes — UI on /ui, API catches all

Route /ui to the UI service, everything else (/, /api, /v2, /health,
etc.) to the API service. Eliminates the need to add a new route rule
for every API path prefix.

apps/base/artifactapi/httproute.yaml

@@ -37,42 +37,22 @@ spec:
       name: artifactapi
       sectionName: https
   rules:
-    - backendRefs:
-        - group: ""
-          kind: Service
-          name: artifactapi
-          port: 80
-          weight: 1
-      matches:
-        - 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
           name: ui
           port: 80
           weight: 1
+      matches:
+        - path:
+            type: PathPrefix
+            value: /ui
+    - backendRefs:
+        - group: ""
+          kind: Service
+          name: artifactapi
+          port: 80
+          weight: 1
       matches:
         - path:
             type: PathPrefix