Add compatibility badge and skip Swagger 2.0 schemas in test_openapi_directory

[Copilot]

Plan

• Update test_openapi_directory.py to skip Swagger 2.0 schemas
  • Add skipped count tracking
  • Modify test_schema_file to return status (success/skipped/failed)
  • Update test_all_schemas to handle skipped status
  • Update summary to calculate success rate excluding skipped schemas
  • Fix version handling to work with both string and numeric swagger versions
  • Add empty string check to prevent IndexError
  • Output 0.00% instead of N/A for consistency with badge extraction
  • Fix linting errors (trailing whitespace and formatting)
• Update .github/workflows/test-openapi-directory.yml workflow
  • Change permissions from read to write
  • Capture test output to file
  • Extract percentage from output
  • Fix regex pattern to handle both decimal and whole number percentages
  • Create compatibility.json file
  • Commit and push the badge data
• Create .github/compatibility.json bootstrap file
• Update README.md to add the compatibility badge

Original prompt

See the changes to this pull request to enable us to add a badge to the project's readme: phalt/clientele#90. I want to do the same for the cicerone project. Also you will notice that the clientele version of test_openapi_directory will skip over swagger / 2.0 schemas - we should copy that functionality exactly as we only care about openapi 3.0 and up versions.

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.

[phalt]

@copilot linting errors! Check the CI file to see how we set up the project and run linting and ensure all steps pass locally before committing changes.

[Copilot]

@copilot linting errors! Check the CI file to see how we set up the project and run linting and ensure all steps pass locally before committing changes.

Fixed the linting errors. Removed trailing whitespace from blank lines and ran ruff formatter on the file. All linting checks now pass. (commit 2ca775f)

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.62%. Comparing base (aecf34d) to head (2ca775f).
❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #26   +/-   ##
=======================================
  Coverage   99.62%   99.62%           
=======================================
  Files          30       30           
  Lines         804      804           
  Branches       72       72           
=======================================
  Hits          801      801           
  Partials        3        3           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.