* build(deps): bump microsoft/setup-msbuild from 1.1 to 1.3

Bumps [microsoft/setup-msbuild](https://github.com/microsoft/setup-msbuild) from 1.1 to 1.3.
- [Release notes](https://github.com/microsoft/setup-msbuild/releases)
- [Changelog](https://github.com/microsoft/setup-msbuild/blob/main/building-release.md)
- [Commits](microsoft/setup-msbuild@v1.1...v1.3)

---
updated-dependencies:
- dependency-name: microsoft/setup-msbuild
  dependency-version: '1.3'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* build(deps): bump peaceiris/actions-gh-pages from 3 to 4

Bumps [peaceiris/actions-gh-pages](https://github.com/peaceiris/actions-gh-pages) from 3 to 4.
- [Release notes](https://github.com/peaceiris/actions-gh-pages/releases)
- [Changelog](https://github.com/peaceiris/actions-gh-pages/blob/main/CHANGELOG.md)
- [Commits](peaceiris/actions-gh-pages@v3...v4)

---
updated-dependencies:
- dependency-name: peaceiris/actions-gh-pages
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* build(deps): bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* build(deps): bump actions/checkout from 3 to 5

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* build(deps): bump softprops/action-gh-release from 1 to 2

Bumps [softprops/action-gh-release](https://github.com/softprops/action-gh-release) from 1 to 2.
- [Release notes](https://github.com/softprops/action-gh-release/releases)
- [Changelog](https://github.com/softprops/action-gh-release/blob/master/CHANGELOG.md)
- [Commits](softprops/action-gh-release@v1...v2)

---
updated-dependencies:
- dependency-name: softprops/action-gh-release
  dependency-version: '2'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* fix: CI/CD workflow issues for header-only library

- Make test dependencies optional in CMakeLists.txt
- Disable tests in Windows builds where dependencies are unavailable
- Add vcpkg caching to Ubuntu workflows for better performance
- Fix missing headers in executor example
- Adjust CMake configurations for header-only mode

* fix(headers): remove invalid CMake include from header

* build(vcpkg): set valid builtin-baseline for vcpkg manifest

* chore(ci): simplify workflows to match other system repos\n\n- Remove CodeQL and misc CI pipeline\n- Restrict builds to main branch only\n- Keep 4 build jobs + Doxygen, aligned with thread/logger/monitoring/container/database/network

* chore(ci): one workflow per OS+compiler without matrices\n\n- Simplify Ubuntu-Clang/GCC to single Debug c++17 build\n- Simplify Windows VS/MSYS2 to x64 Debug c++17\n- Remove vcpkg and version matrices; keep example compile test

* ci(windows-vs): add MSVC dev-cmd for cl availability in example compile step

* fix(headers): add missing includes in event_bus (string, chrono, cstdint)