chore: implement auto release chain

[arlert-armin]

Summary

• New production release pipeline that automatically runs the full release process.

• Calls existing workflows (main-sync, publish, deploy, post-release) in sequence.

• Handles syncing branches, publishing, version bumping, changelog updates, and deployments — leaving only the Promote to Production step as manual.

• Renamed release workflow → main-sync

  • Better reflects its purpose: syncing main with next.
  • Still available for manual releases or as part of the automated release-prod flow.

Changes in Documentation

• Rewrote the Production Release guide:

  • Split into two release methods:

    1. Automatic flow — run release-prod for a full end-to-end release.
    2. Manual flow — run workflows step-by-step for more control.

Fixes # (issue)

How did you test this change?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A
• Test B

Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• Implemented a user interface (UI) change, referencing our Figma design to ensure pixel-perfect precision.