Add generic E2E harness and Marmot TS relay test suite

scripts/run_marmot_e2e.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$ROOT_DIR/marmot-ts"
+
+if [[ ! -d node_modules ]]; then
+  npm install --no-audit --no-fund
+fi
+
+npm run compile
+
+cd "$ROOT_DIR"
+export PARRHESIA_MARMOT_E2E=1
+
+exec ./scripts/run_e2e_suite.sh \
+  marmot \
+  node --test ./test/marmot_e2e/marmot_client_e2e.test.mjs