Guard key insights against null Actions minutes lists

[kgrizz-git]

Summary

• Add a defensive None fallback for repo_consumers.by_minutes in get_key_insights
• Prevent an index error when SonarCloud or upstream data returns by_minutes: null
• Add a regression test covering the null-list case

Why

get_key_insights previously assumed repo_consumers.by_minutes was always a list. When that field is None, indexing the first element can raise an error and break report generation. The new guard keeps the insight calculation resilient while preserving the existing output behavior.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud