v0.12.0

What's Changed

• feat: add LINUXDO_AUTH_ENABLED switch to disable LINUX DO Connect login
• fix: don't cache /api/v1/auth/config so LINUXDO_AUTH_ENABLED applies immediately; document local-only admin setup
• fix: scope persona-select lookup to peer container to avoid mobile reading hidden desktop select
• fix: restore docs/docker.md utf-8 encoding and keep image placeholder
• chore: switch to Apache-2.0 with Commons Clause (no commercial use / no resale)
• chore: replace private docker image reference with placeholder
• docs: add security policy and trilingual issue templates

Full Changelog: v0.11.0...v0.12.0