修正了种子编译器的错误

includes/string.py

@@ -38,10 +38,11 @@ def strncpy(dest: str, src: str, n: t.CSizeT) -> str:
         dest[0] = s
         dest += 1
         i += 1
-    # 填充剩余空间为 '\0'
-    for i in range(n):
+    # 填充剩余空间为 '\0'（只填充 n-i 个，避免缓冲区溢出）
+    while i < n:
         dest[0] = 0
         dest += 1
+        i += 1
     return original_dest