* Fix#615: Switch from Travis CI to GitHub Actions
Add a GitHub Actions CI workflow with a full build matrix covering
linux, macOS, and Windows with both GCC and Clang compilers, Debug
and Release build types, and optional ASan+UBSan sanitizers (24 builds
total). Windows builds use MSYS2 for GCC/Clang toolchains. The workflow
relies on CMake and CTest to drive configuration, building, and testing.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Address review: use native compilers, remove MSYS/MinGW
Use Visual Studio (MSVC) on Windows, Apple Clang on macOS, and GCC on
Linux. Remove MSYS2/MinGW toolchain setup entirely. Split into three
separate jobs for clarity. Fix workflow validation issues.
Requested by @lefticus in PR #658 review.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* Address review: add workflow_dispatch to enable manual CI runs on fork
Add workflow_dispatch trigger so the workflow can be manually run on the
leftibot fork to verify that GitHub Actions are working correctly.
Requested by @lefticus in PR #658 review.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Co-authored-by: leftibot <leftibot@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
