ci: add sonarcloud.yml and sonar-project.properties

[don-petry]

Summary

• Adds .github/workflows/sonarcloud.yml following the Tier 2 per-repo pattern from ci-standards.md §3
• Copies the exact standard configuration (SHA-pinned actions, correct permissions, SONAR_TOKEN guard)
• Adds sonar-project.properties with project key petry-projects_.github-private, org petry-projects, modeled on the broodly repo pattern

Test plan

• Confirm SonarCloud scan triggers on push to main after merge
• Confirm SONAR_TOKEN org secret is inherited (no additional config needed)
• Confirm compliance audit clears the missing-sonarcloud.yml finding on next run

Closes #47

Generated with Claude Code

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Configuration used: Organization UI

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Run ID: f340ec22-82be-4b1c-a084-165041f65fb4

📥 Commits

Reviewing files that changed from the base of the PR and between 5042df9 and a609b81.

📒 Files selected for processing (2)

• .github/workflows/sonarcloud.yml
• sonar-project.properties

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/issue-47-20260508-1409

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[don-petry]

@don-petry — PR is ready for review and merge. This adds the missing sonarcloud.yml workflow and sonar-project.properties to resolve the compliance finding.

[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

[Copilot]

Pull request overview

Adds SonarCloud scanning configuration to bring this repository into CI compliance (issue #47) by introducing the required workflow and SonarCloud project properties.

Changes:

• Added .github/workflows/sonarcloud.yml to run SonarCloud analysis on pushes and PRs targeting main.
• Added sonar-project.properties to define the SonarCloud project key/org/name and basic source/exclusion settings.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
sonar-project.properties	Defines SonarCloud project metadata and scanner scope/exclusions.
.github/workflows/sonarcloud.yml	Adds the SonarCloud scan workflow (SHA-pinned actions, guarded by SONAR_TOKEN).

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