add auto-signup login and localized auth UI

- backend: userLogin auto-registers missing users and returns auto_registered
- frontend: add responsive auth page (login + signup flow via userLogin) with light/dark mode and logo
- i18n: wire language switching, add translations for cs/en/es/de
- ui/tooling: add Font Awesome integration
This commit is contained in:
2026-02-13 07:55:37 +01:00
parent 2d96baa389
commit 64a8ac047f
21 changed files with 1168 additions and 17 deletions

BIN
frontend/public/Nutrio.png Normal file

Binary file not shown.

After

Width:  |  Height:  |  Size: 117 KiB