fix: address CI Docker build and scanning failure for PR #666

Author: actions-user

.github/agents/DevOps.agent.md

@@ -135,6 +135,7 @@ main:
    - Look for error messages
    - Check timing (timeout vs crash)
    - Environment variables set correctly?
+    - If MCP web fetch lacks auth, pull workflow logs with `gh` CLI
 
 3. **Verify environment configuration**
    ```bash

.github/instructions/github-actions-ci-cd-best-practices.instructions.md

@@ -502,6 +502,8 @@ This checklist provides a granular set of criteria for reviewing GitHub Actions
 
 This section provides an expanded guide to diagnosing and resolving frequent problems encountered when working with GitHub Actions workflows.
 
+Note: If workflow logs are not accessible via MCP web fetch due to missing auth, retrieve logs with the authenticated `gh` CLI.
+
 ### **1. Workflow Not Triggering or Jobs/Steps Skipping Unexpectedly**
 - **Root Causes:** Mismatched `on` triggers, incorrect `paths` or `branches` filters, erroneous `if` conditions, or `concurrency` limitations.
 - **Actionable Steps:**