LSP integration steps 1-4, part of 5.

lsp/JsonRpcTransport.cc

@@ -0,0 +1,19 @@
+/*
+ * JsonRpcTransport.cc - placeholder
+ */
+#include "JsonRpcTransport.h"
+
+namespace kte::lsp {
+void
+JsonRpcTransport::send(const std::string &/*method*/, const std::string &/*payload*/)
+{
+	// stub: no-op
+}
+
+
+std::optional<JsonRpcMessage>
+JsonRpcTransport::read()
+{
+	return std::nullopt; // stub
+}
+} // namespace kte::lsp