* Fix circular includes and include cleanup
Fixed a bug where other *.h header files would include extension.h, which itself
was already included in those same headers, creating a circular dependency cycle.
This caused build errors and made compilation unpredictable.
To resolve this:
- Moved implementation-only includes to .cpp files where they are actually needed.
- Added forward declarations where possible to avoid pulling in unnecessary headers.
- Ensured extension.h only contains declarations that require full type definitions.
This improves build stability and compilation time.
* Clean up includes and fix build errors
- Replaced full includes with forward declarations where possible
- Moved implementation-only includes from .h to .cpp files
- Added missing includes for stdint.h and Steam interfaces
- This significantly reduces compilation time and prevents future dependency issues
* Switch to SourceMod SDK smsdk_ext instead of local copy
Rework the build and CI: swap to SourceMod's safetyhook-based CDetour and
drop the vendored CDetour/asm sources, the old Makefile, Travis config, and
buildbot perl scripts. Add GitHub Actions building and releasing x86 and
x86_64 against SM 1.12 and 1.13, plus dependabot. Split the Windows and Linux
packages and tidy naming.
Gate IPluginManager::FindPluginByContext on the extension API version so the
extension builds against both SM 1.12 (API 8) and 1.13 (API 9), and shim
DETOUR_CREATE_STATIC_FIXED over the address overload safetyhook exposes.
Deprecate SteamWorks_ForceHeartbeat: newer Steamworks SDKs removed
ISteamGameServer::ForceHeartbeat, so make the native a no-op and mark it
deprecated in the include.
Nicholas Hastings
A1m`
David Anderson
Kyle Sanderson
Dr!fter