[ox] Fix remaining implicit conversion issues

deps/ox/src/ox/model/CMakeLists.txt

@@ -5,6 +5,11 @@ add_library(
 		modelvalue.cpp
 )
 
+if(NOT MSVC)
+	target_compile_options(OxModel PRIVATE -Wconversion)
+	target_compile_options(OxModel PRIVATE -Wsign-conversion)
+endif()
+
 target_link_libraries(
 	OxModel PUBLIC
 		OxStd