fix: set correct CORS headers in Tey Redirect API

Merge pull request #7 from NTUT-NPC/api

feat: API endpoint for editing redirects.toml

feat: add Shorts icon to 404 page

Merge pull request #3 from NTUT-NPC/update-readme

縮減 README，新增中文文件

ci: temporary disable artifact attestation

ci: tag images with semver

feat: configurable 404 page

ci: only publish on tagged releases