chore: init frontend+backend skeleton

scripts/bootstrap_ubuntu.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+sudo apt-get update -y
+
+# C++ toolchain + Drogon + SQLite + Catch2
+sudo apt-get install -y \
+  build-essential cmake ninja-build pkg-config git \
+  libdrogon-dev \
+  libjsoncpp-dev libyaml-cpp-dev libhiredis-dev \
+  libpq-dev libmariadb-dev libmariadb-dev-compat \
+  libsqlite3-dev sqlite3 \
+  catch2
+
+# Node.js / npm 通常由 NodeSource 预装；这里仅做提示
+node -v
+npm -v
+
+echo "Bootstrap OK"