docs(deploy): add sandbox deploy runbook and recreate-relay script

[Ferryx349]

Description

Document the manual post-pull migrate and recreate flow, rollback steps, and /readyz verification. Closes the gap where the webhook pull stack loads images but does not restart the relay.

Related Issue

closes:- #767

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Non-functional change (docs, style, minor refactor)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my code changes.
• I added a changeset, or this is docs-only and I added an empty changeset.
• All new and existing tests passed.

[changeset-bot]

🦋 Changeset detected

Latest commit: 622e2ba

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
nostream	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[greptile-apps]

Confidence Score: 3/5

[Low risk] Adds deployment documentation and a helper script.

The PR is not ready to merge until the rollback procedure can reliably restore the previous image without rerunning migrations.

Findings

1.  Rollback records the new image ▶
2.  Rollback reruns migrations ▶
3.  Migration status is not explicit ▶
4.  Host lacks the script ▶

Summary

The PR adds a manual deployment runbook and a single-relay script to migrate, recreate, and check readiness after image delivery.

• The rollback instructions need correction: image capture can select the new image, and the single-relay rollback reruns migrations.
• The migration gate and host-side script instructions should be made explicit.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  A[New image delivered] --> B[Run migrations]
  B -->|success| C[Recreate relay]
  C --> D[Check /readyz]
  D -->|failure| E[Restore previous image]
  E --> F[Recreate without migrations]

Loading

_{Reviews (1) · Last reviewed commit: "docs(deploy): add deploy runbook and sin..."}