Merge all valid changes, fix build errors, and verify DLL packaging

Reconciles all valid changes across target origin feature and fix branches.
Preserves output library base naming projectM-4 (projectM-4.dll/lib on Windows,
libprojectM-4.so on Linux). Fixes evaluator loop caps and NaN/Inf math edge
cases. Integrates subtle fallback audio reactivity API and logic. Adds GLAD
pointer safety checks in renderer components. Fixes MSVC C++14 attribute
warnings and header dependencies in BenchmarkHeadless.cpp. Updates GitHub Actions
Windows CI workflow for x86 and x64 builds, PE machine header architecture
verification, ZIP packaging, SHA-256 generation, and release publishing on
version tags.

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

Author: codeboxqc

tests/libprojectM/BenchmarkHeadless.cpp

@@ -83,7 +83,10 @@ static bool IsParserAudioReactive(libprojectM::MilkdropPreset::PresetFileParser&
     return false;
 }
 
-int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv) {
+int main(int argc, char** argv) {
+    (void)argc;
+    (void)argv;
+
     std::cout << "[projectM-benchmark] Running audio reactivity and fallback layer tests..." << std::endl;
 
     // Test 1: Non-audio-reactive preset detection