feat: Playwright against deployed music-room (shell + optional unionid chain)

No Rust/Compose; GitHub Actions with MOICEN_E2E_UNIONID secret; dotenv .env.e2e; proxy install script.

Made-with: Cursor

scripts/install-with-proxy.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# 经本机 HTTP 代理安装 npm 与 Playwright Chromium（默认 http://localhost:7890）
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+PROXY_URL="${HTTP_PROXY:-${HTTPS_PROXY:-http://localhost:7890}}"
+
+export HTTP_PROXY="$PROXY_URL"
+export HTTPS_PROXY="$PROXY_URL"
+export ALL_PROXY="${ALL_PROXY:-$PROXY_URL}"
+export NO_PROXY="${NO_PROXY:-127.0.0.1,localhost}"
+
+echo "Using proxy: $HTTP_PROXY"
+
+cd "$ROOT"
+npm ci
+npx playwright install chromium --with-deps