Promote staging -> main (2026-07-28)

[github-actions]

Environment promotion

Promote the validated staging environment into main.
This is a deployment-promotion PR, not the version-release PR.

• Source: staging
• Target: main
• Changes: 1 change
• Created: 2026-07-28

Commit summary

• feat: simplify initialization and synchronization (4ef4dce)

Validation

• Required CI, test, security, and CodeQL checks must pass before merge.
• Merge with rebase to preserve the linear Conventional Commit history.
• After merge, Release Please opens a separate versioned release PR with the changelog.