chore: add logging under tracing feature

tests/tracing/mod.rs

@@ -0,0 +1,10 @@
+//! Tests for tracing functionality
+//!
+//! These tests verify that the tracing feature works correctly when enabled
+//! and that the library compiles and works without it when disabled.
+
+#[cfg(feature = "tracing")]
+mod with_tracing;
+
+#[cfg(not(feature = "tracing"))]
+mod without_tracing;