brusnika-stage: orchestrator routes like vad

/orchestrator/api/process/, /orchestrator/api/sign and /orchestrator/ are
rewritten to /api/... before reaching cde.orchestrator:8080, same rules as
the cde-api virtual service in vad. Replaces the single prefix route that
passed the path through unchanged.

infrastructure/istio-config/brusnika-stage/istio-config.yaml

@@ -671,8 +671,19 @@ spec:
                 allowOrigins:
                   - regex: ".*"
               routes:
+                - path:
+                    prefix: /orchestrator/api/process/
+                  rewrite: /api/process/
+                  service: cde.orchestrator.svc.cluster.local
+                  port: 8080
+                - path:
+                    prefix: /orchestrator/api/sign
+                  rewrite: /api/sign
+                  service: cde.orchestrator.svc.cluster.local
+                  port: 8080
                 - path:
                     prefix: /orchestrator/
+                  rewrite: /api/
                   service: cde.orchestrator.svc.cluster.local
                   port: 8080
             global-test-vs: