Fixed: regeneration of Wine server protocol files (tools/make_requests) now properly aborts the build if it fails, instead of silently continuing with out-of-sync header files.
Previously, if wine/tools/make_requests was missing or returned a non-zero exit code, the script would print a yellow warning and keep building — potentially producing a broken Proton. Now both causes produce a clear red error panel and an immediate sys.exit(1) before the build starts.