Add CloudFormation infrastructure tests and test package setup

[jfrench9]

Summary

Introduces a new test suite for validating CloudFormation configurations, along with the necessary package initialization for the infrastructure test module. This lays the groundwork for automated verification of CloudFormation templates and infrastructure-as-code artifacts.

Key Accomplishments

• New test module: Created tests/infrastructure/ package with proper __init__.py for test discovery
• CloudFormation test coverage: Added test_cloudformation.py with 42 lines of test logic to validate CloudFormation configurations
• Improved maintainability: Supports the broader effort of streamlining CloudFormation configurations by ensuring changes can be validated through automated tests
• Documentation alignment: Complements updates to API key rotation documentation and removal of redundant CloudFormation parameters referenced in associated changes

Breaking Changes

None. This is a purely additive change introducing new test files with no modifications to existing code or infrastructure.

Testing Notes

• New test file test_cloudformation.py should be executed as part of the standard test suite to verify CloudFormation template validity
• Ensure the test runner is configured to discover tests within the tests/infrastructure/ directory
• These tests are intended to catch regressions when CloudFormation configurations are modified, particularly around parameter definitions and template structure

Infrastructure Considerations

• The tests validate CloudFormation configuration correctness at the code level, helping prevent deployment failures caused by malformed templates or redundant parameters
• As CloudFormation templates evolve (e.g., parameter cleanup, comment improvements), this test suite serves as a safety net to ensure configurations remain valid
• Consider integrating these infrastructure tests into CI/CD pipelines to gate deployments on passing validation checks

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🤖 Generated with Claude Code

Branch Info:

• Source: feature/cf-size-test
• Target: main
• Type: feature

Co-Authored-By: Claude noreply@anthropic.com