Add prototype of pipeline api using connect

This includes refactoring of the http listener to use
a custom mux.

pipeline_api/pipeline_api.go

@@ -0,0 +1,33 @@
+package pipeline_api
+
+import (
+	"context"
+	"net/http"
+
+	get_runnerv1 "git.ohea.xyz/cursorius/server/proto/gen/get_runner/v1"
+	"git.ohea.xyz/cursorius/server/proto/gen/get_runner/v1/get_runnerv1connect"
+	"github.com/bufbuild/connect-go"
+	"github.com/op/go-logging"
+)
+
+var log = logging.MustGetLogger("cursorius-server")
+
+type ApiServer struct{}
+
+func (s *ApiServer) GetRunner(
+	ctx context.Context,
+	req *connect.Request[get_runnerv1.GetRunnerRequest],
+) (*connect.Response[get_runnerv1.GetRunnerResponse], error) {
+	log.Debugf("Request Headers: %v", req.Header())
+	res := connect.NewResponse(&get_runnerv1.GetRunnerResponse{
+		Success: true,
+	})
+	res.Header().Set("GetRunner-Version", "v1")
+	return res, nil
+}
+
+func CreateHandler(mux *http.ServeMux) {
+	api_server := &ApiServer{}
+	path, handler := get_runnerv1connect.NewGetRunnerServiceHandler(api_server)
+	mux.Handle(path, handler)
+}