Add "Новый клиент" (direct) flow alongside cascade:
- server.js: POST /api/clients/create — Endpoint = this server's
public IP:ListenPort (CLIENT_CONFIG_ENDPOINT or request host),
reuses the same key/peer/conf pipeline as create-cascade.
- public/index.html: "Новый клиент" panel with #direct-form
(name + optional tunnel IP).
- public/app.js: downloadDirectConf() handler + form binding.
install.sh hardening so fresh installs work out of the box:
- Auto-detect a single amnezia-awg* container (e.g. amnezia-awg2,
Amnezia AWG 2.0 default) -> AWG_CONTAINER, instead of the fixed
"amnezia-awg" default that mismatched and blocked client ops.
- Auto-default CLIENT_CONFIG_ENDPOINT to the host primary IP so
direct .conf exports get a correct Endpoint without manual env.
Fixes "cannot create users" on servers whose WG container is
named amnezia-awg2.
c49e7eea8d