Ritesh Kudkelwar

CI: add test/lint/coverage/release workflows (+ optional Pages coverage)

2

Adds a small set of GitHub Actions for the C/Autotools build: - test.yaml — configure/make (runs a quick smoke of `./axel`) - lint.yaml — clang-format + cppcheck - coverage-pages.yaml —...

ci: add Cygwin build workflow

18

- [ ] I ran valgrind when using my new feature ### How to test the functionality * step 1 * step 2