feat(cloudwatch-appsignals-mcp-server): Node.js docker sample app

[jj22ee]

Fixes

Summary

Changes

Please provide a summary of what's being changed

User experience

Please share what the user experience looks like before and after this change

Checklist

If your change doesn't seem to apply, please leave them unchecked.

• [ ] I have reviewed the contributing guidelines
• [ ] I have performed a self-review of this change
• [ ] Changes have been tested
• [ ] Changes are documented

Is this a breaking change? (Y/N)

RFC issue number:

Checklist:

• [ ] Migration process documented
• [ ] Implement warnings (if it can live side by side)

Acknowledgment

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of the project license.

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 89.90%. Comparing base (7421f64) to head (0ce7ae5). :warning: Report is 61 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1664      +/-   ##
==========================================
+ Coverage   89.83%   89.90%   +0.06%     
==========================================
  Files         741      745       +4     
  Lines       52968    53326     +358     
  Branches     8512     8552      +40     
==========================================
+ Hits        47586    47942     +356     
- Misses       3447     3448       +1     
- Partials     1935     1936       +1     

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

:rocket: New features to boost your workflow:

• :snowflake: Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• :package: JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[github-advanced-security[bot]]

This pull request sets up GitHub code scanning for this repository. Once the scans have completed and the checks have passed, the analysis results for this pull request branch will appear on this overview. Once you merge this pull request, the 'Security' tab will show more code scanning analysis results (for example, for the default branch). Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results. For more information about GitHub code scanning, check out the documentation.