code: @DELETE
      @Path("/bps/{bpid}")
      public Response migrateBounceProxy(@PathParam("bpid") String bpId) {
          return Response.status(501 /* Not Implemented */).build();
      }
docs: TODO placeholder for future implementation
  
  Migrates a single bounce proxy to a different cluster.
  
  @param bpId bounce proxy id
  @return response with status 501 (not implemented)