feat(aliases): add type aliases for fixed-width integers

src/common/aliases/std_cstdint.hpp

@@ -0,0 +1,7 @@
+#pragma once
+#include <cstdint>
+
+// Fixed-width unsigned integers
+using u8 = std::uint8_t;
+using u32 = std::uint32_t;
+using u64 = std::uint64_t;