Point production deploys at ghcr.io/marmot-protocol/keycast

[erskingardner]

Summary

• Updated production image defaults to ghcr.io/marmot-protocol/keycast in Compose and env examples.
• Switched Docker OCI source metadata and deployment docs to the Marmot Protocol repository URL.
• Added an upgrade note that GHCR must be public or the deploy host must authenticate if pulls return unauthorized.

Testing

• docker compose -f docker-compose.prod.yml config renders the new ghcr.io/marmot-protocol/keycast:master image for API, web, and signer.
• Verified no stale erskingardner/keycast references remain in the repo.
• git diff --check passed.

Summary by CodeRabbit

• Chores

  • Updated Docker image repository references to marmot-protocol/keycast across production deployment configurations.

• Documentation

  • Added troubleshooting guidance for GitHub Packages authentication during deployment.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 053f11ec-b674-4a40-8d17-176c20491ea9

📥 Commits

Reviewing files that changed from the base of the PR and between 3211248 and 9b6e4b3.

📒 Files selected for processing (5)

• .env.example
• Dockerfile
• README.md
• UPGRADE.md
• docker-compose.prod.yml

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Walkthrough

This PR migrates the Docker image repository from ghcr.io/erskingardner/keycast to ghcr.io/marmot-protocol/keycast. All deployment configuration files (environment template, Dockerfile metadata, and production compose), plus README and UPGRADE documentation, are updated to reference the new repository.

Changes

Docker Image Repository Migration to marmot-protocol

Layer / File(s)	Summary
Deployment and build configuration .env.example, Dockerfile, docker-compose.prod.yml	The KEYCAST_IMAGE environment variable, Dockerfile metadata label, and the three keycast service images (keycast-api, keycast-web, keycast-signer) now reference ghcr.io/marmot-protocol/keycast. All services retain the same tag defaulting behavior (${KEYCAST_IMAGE_TAG:-master}).
Documentation and upgrade guidance README.md, UPGRADE.md	Deployment documentation is updated to show the new image repository. UPGRADE guide directs users to the new repository and adds troubleshooting guidance for GHCR unauthorized errors, recommending either public visibility or host authentication before retry.

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🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly and precisely describes the main change: updating production deployment image references from erskingardner to marmot-protocol in GHCR.
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 codex/fix-authentication-deletion

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