修复了大量存在的问题，增加了假鸭子类型等等机制

includes/base64.py

@@ -5,10 +5,10 @@ import t, c
 # Base64 编解码 纯裸实现
 # ==============================================
 # Base64 编码对照表
-b64_tab: list[t.CChar, None] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
+b64_tab: t.CArray[t.CChar, None] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
 
 # Base64 反向解码表，映射字符到索引值
-b64_dec_tab: list[t.CInt8T, 80] = [
+b64_dec_tab: t.CArray[t.CInt8T, 80] = [
     62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
     -1, -1, -1, -1, -1, -1, -1, 0,   1,  2,  3,  4,  5,  6,  7,  8, 9,
     10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,