fix: AIUI /aiui/ base path, nginx alias cycle, VPN auth, container boot

- AIUI: rebuild with /aiui/ base path (router, chunk loader, SW scope)
- nginx: remove alias from /aiui/ location (caused try_files redirect cycle)
- VPN: WireGuard standalone setup, auth improvements
- ISO: build script hardening, service file updates
- first-boot-containers: networking stack fixes

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

demo/aiui/assets/FilmDetail-XFjPooKR.js

@@ -0,0 +1 @@
+import{_ as m}from"./FilmDetail.vue_vue_type_script_setup_true_lang-Cg4zvjy1.js";import"./index-Lh5NfTCq.js";export{m as default};