feat(auth): Base auth with plugins

- Add fastify to protect routes plugins (requireAuth: true)
- Simple Demo to show regular password auth (no 2FA/OTP nor remote auth)
- Currently supports: login, logout, signin
- OTP workflow should work, not tested
- Fixed convention for docker volumes (now all placed in /volumes/<name>)

src/auth/entrypoint.sh

@@ -4,7 +4,8 @@ set -e
 set -x
 # do anything here
 
-cp -r /extra /files
+mkdir -p /volumes/static/auth/
+cp -r /extra/login_demo.html /volumes/static/auth/index.html
 
 # run the CMD [ ... ] from the dockerfile
 exec "$@"