feat: Design and implement the operator-in-the-loop end-to-end orchestration model

[github-actions]

Design and implement the operator-in-the-loop end-to-end orchestration model

Refs #33

Source issue: #33
Created by orchestration automation

---

Summary

Test plan

• Verification step 1

Review Checklist

• Implementation matches the bounded scope in the plan
• No out-of-scope changes included
• Documentation updated if required by the plan's review expectations
• All new files follow existing naming and structural conventions