v1.0.0

Changelog

• 4bc4863 Add GitHub Actions CI + GoReleaser workflow
• 70b8680 Fix go vet warning (redundant newline in Println)
• 75f9ba3 Fix: add contents:write permission for GoReleaser release
• 178713f Fix: trigger CI on tags as well
• 9d63f0c Initial commit: P31 CLI v1.0.0
• 1d587ee Update README with live badges and URLs