docs: prepare main-device handoff

[Ker102]

Summary

• Refresh handoff/progress/runbook docs for the post-freeze main branch state.
• Correct Azure wording so docs do not overclaim live LocalStack Azure validation before emulator entitlement is available.
• Mark the old real-sandbox implementation plan as mostly implemented/historical and point future agents at the remaining Azure validation work.

Verification

• python -m pip install -e .[dev]
• python -m ruff check src tests
• python -m mypy src
• python -m unittest discover -s tests -v (146 tests OK)
• python -m nullstate run examples/aws-public-s3 --offline --mock-agents --runs-dir runs/handback-smoke-20260619-195333
• python -m nullstate bundle --runs-dir runs/handback-smoke-20260619-195333
• python -m nullstate dashboard --runs-dir runs/handback-smoke-20260619-195333

Notes

• Doc-only handoff readiness PR. CodeRabbit review can be skipped to avoid spending review quota on housekeeping.

Summary by CodeRabbit

• Documentation
  • Updated demo and platform validation status: AWS S3 confirmed live, Azure validation pending entitlement
  • Enhanced operational handoff documentation with environment setup checklist and verification procedures
  • Revised branch protection and release approval guidance to reflect post-hackathon workflow with explicit owner approval requirement for releases

[Ker102]

@coderabbitai skip\n\nDoc-only handoff readiness PR with local verification already run. Skipping to avoid spending CodeRabbit review quota on housekeeping.

[coderabbitai]

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Caution

Review failed

Pull request was closed or merged during review

📝 Walkthrough

Walkthrough

Documentation-only update reflecting the PR #24 merge state: README corrects AWS/Azure validation status in three locations, the plan and progress docs mark Tasks 1–6 as merged, the runbook replaces the hackathon-freeze sentence with a post-freeze/owner-approval statement, and the handoff guide adds a fresh-agent checklist plus updated verification run details.

Changes

Post-PR #24 documentation refresh

Layer / File(s)	Summary
AWS/Azure status and release-freeze corrections README.md, docs/plans/2026-06-01-real-sandbox-red-team-commands.md, docs/progress.md, docs/runbook.md	README rewrites Azure Blob status to manifest-backed/entitlement-pending in three places. The plan doc marks Tasks 1–6 merged via PR #24 and changes "safe but shallow" to "safe and partly runtime-backed." docs/progress.md records the PR #24 merge, rewords the freeze rule to "release approval explicit," and adds the 2026-06-19 handoff checkpoint. docs/runbook.md replaces the freeze sentence with a post-freeze statement requiring explicit owner approval for tags/releases.
Handoff guide: fresh-agent checklist and verification update docs/handoff.md	Updates "Last updated" date and recent-checkpoint reference to PR #24, inserts a "Fresh agent checklist" section with branch/env/test setup commands, refreshes the "Last verification run" block to a 2026-06-19 smoke run directory, trims the enterprise hardening bullet to a single Azure-entitlement sentence, reframes productization checkpoints as merged into main, and rewrites branch/release guidance for the protected-PR post-freeze workflow.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~4 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'docs: prepare main-device handoff' directly and specifically summarizes the primary change: preparing documentation for main-device handoff after the development freeze.
Description check	✅ Passed	The PR description includes a comprehensive summary of changes, detailed verification steps (installation, linting, type checking, tests, smoke testing), and notes about the housekeeping nature of the PR. However, it deviates from the template structure by providing custom verification steps instead of using the template's checklist format.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/handoff-ready-main

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[coderabbitai]

@Ker102 Understood — skipping the review for this doc-only handoff PR. 🐇

✅ Action performed

Reviews paused.