refactoring

Co-authored-by: n.fedorov <mail@nfedorov.dev>
Co-committed-by: n.fedorov <mail@nfedorov.dev>

include/nxst/infra/sys/logger.hpp

@@ -0,0 +1,14 @@
+#pragma once
+
+// New API — use these going forward.
+namespace nxst::log {
+
+    enum class Level { Debug, Info, Warn, Error };
+
+    void write(Level level, const char* fmt, ...) __attribute__((format(printf, 2, 3)));
+    void debug(const char* fmt, ...) __attribute__((format(printf, 1, 2)));
+    void info(const char* fmt, ...) __attribute__((format(printf, 1, 2)));
+    void warn(const char* fmt, ...) __attribute__((format(printf, 1, 2)));
+    void error(const char* fmt, ...) __attribute__((format(printf, 1, 2)));
+
+}  // namespace nxst::log