Refactor memory utilities: unify validation logic, adjust return types, and clean up main.zig formatting.

build.zig

@@ -3,7 +3,7 @@ const std = @import("std");
 pub fn build(b: *std.Build) void
 {
     const target   = b.standardTargetOptions(.{
-        .default_target = .{ .abi = .musl },
+        // .default_target = .{ .abi = .musl },
     });
     const optimize = b.standardOptimizeOption(.{});
 
@@ -46,7 +46,7 @@ pub fn build(b: *std.Build) void
         }),
     });
 
-    exe.root_module.link_libc = true;
+    // exe.root_module.link_libc = true;
     exe.root_module.addOptions("build_options", options);
 
     //