Deploy scripts now look for templates in INFRA_DIR first, then fall back
to the bundled copies in automa. This makes automa fully self-contained:
a .env with filled values is all that is needed — no infra checkout required.
Bundle: config.json.example, privoxy.conf.example, shadowsocks-client.service,
shadowsocks-rust.service, frps.toml.example, frps.service,
frpc.toml.example, frpc.service
