Expose catalog-api under /catalog/v1, decoupled from the backend path

Public routes no longer leak classic-models-api's own /api/v1 prefix.
request-transformer-advanced rewrites to the real backend path per route.

kong/mcp/ai-mcp-proxy.yaml

@@ -23,7 +23,7 @@ config:
       method: GET
       scheme: http
       host: ${REST_HOSTNAME}
-      path: /classic-models/api/v1/products/
+      path: /catalog/v1/products/
     - name: get-product
       description: Retrieves a single product by its product code.
       annotations:
@@ -39,7 +39,7 @@ config:
       method: GET
       scheme: http
       host: ${REST_HOSTNAME}
-      path: /classic-models/api/v1/products/{productcode}/
+      path: /catalog/v1/products/{productcode}/
       parameters:
         - name: productcode
           in: path
@@ -60,7 +60,7 @@ config:
       method: POST
       scheme: http
       host: ${REST_HOSTNAME}
-      path: /classic-models/api/v1/products/
+      path: /catalog/v1/products/
       request_body:
         required: true
         content: