Build sales-api REST + MCP layers (Layer 3), full build in one pass

14 routes: Order (single key, full CRUD + order-details sub-resource)
and Orderdetail (composite key ordernumber+productcode, own
top-level resource, mirrors backend's own URL structure). MCP layer
built with the corrected single-route pattern from the start
(STATUS.md section 18) — 7 tools, list/get read-only for all 5
roles, create-order/create-orderdetail for admin+customer+support
(verified against OrderPermission/OrderScopedPermission.check() —
support gets an unconditional class-level pass, the status-only
restriction is object-level and doesn't apply to create).

Keycloak (local): sales-api-audience + mcp-sales-audience client
scopes, sales-api + mcp-sales resource clients, attached to the
broker and librechat respectively. Deploy key and broker secret
reused/mirrored from catalog-api and the live broker client, same
pattern as customers-api/payments-api.

kong/kustomization.yaml

@@ -0,0 +1,23 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - rest/service.yaml
+  - rest/routes.yaml
+  - rest/path-rewrite.yaml
+  - rest/path-rewrite-bindings.yaml
+  - rest/kongplugin.yaml
+  - rest/rate-limiting.yaml
+  - rest/proxy-cache.yaml
+  - rest/audit-log.yaml
+  - rest/audit-log-body-capture.yaml
+  - rest/audit-log-body-capture-bindings.yaml
+  - rest/pluginbindings.yaml
+  - mcp/service.yaml
+  - mcp/routes.yaml
+  - mcp/consumergroups.yaml
+  - mcp/ai-mcp-proxy.yaml
+  - mcp/openid-connect.yaml
+  - mcp/audit-log.yaml
+  - mcp/audit-log-body-capture.yaml
+  - mcp/audit-log-body-capture-bindings.yaml
+  - mcp/pluginbindings.yaml