CI Health Check - Testing master branch

[ChrisRackauckas-Claude]

Automated CI Health Check

This is an automated CI health check to verify that the CI pipeline is working correctly on the main branch.

Changes

• Added a trailing newline to README.md (trivial whitespace change)

Purpose

This PR is created to:

1. Trigger a full CI run on the current main branch code
2. Verify all CI workflows are functioning properly
3. Detect any regressions or issues in the test suite

Resolution

• If CI passes: This PR will be closed automatically with a note that CI is healthy
• If CI fails: The failure will be investigated and a fix will be attempted

This is an automated CI health check performed on 2025-12-28

[ChrisRackauckas-Claude]

CI health check detected issues:

1. Format Check Failure: Several files need formatting (not addressing in this PR as per instructions to not run formatters)
2. Downgrade Test Failure: Tests use ODESystem which is not exported in ModelingToolkit v10 minimum version. Should be System.

Creating a fix PR to address the Downgrade test failure.