将 .py 和 .pyi 后缀名改为了 .vp 和 .vpi 后缀名

includes/ctraits.vpi

@@ -0,0 +1,19 @@
+"""ctraits — Compile-time type trait library
+
+Provides compile-time type predicates with no runtime code generated.
+All functions are evaluated exclusively at compile time and can be combined with conditional compilation constructs such as c.CIf.
+"""
+import t
+
+def isptr(x: t.CType) -> bool:
+    """Compile-time predicate to determine whether the type of x is a pointer.
+
+    Returns True if x is a pointer type (ptr_count > 0); otherwise returns False.
+    Can be used alongside c.CIf to implement conditional compilation.
+
+    Example:
+        if c.CIf(ctraits.isptr(my_var)):
+            # This branch compiles only when my_var is a pointer type
+            ...
+    """
+    pass