Refactor code structure for improved readability and maintainability

data/pdf_chunks/page_1.txt

@@ -0,0 +1,24 @@
+=== 第 1 页切片结果 ===
+图片: page_1.png
+MD5: 3a0587908dec601c902b954eeecc6365
+文本长度: 194 字符
+切片大小: 500 字符
+切片数量: 1 个
+
+--- Chunk 0 ---
+长度: 194 字符
+内容:
+!"#!"!#!$
+$%"
+!
+! " # $ % & ’ ’ ( ) *
+%&#&"&"!’$$(
+"# "#$%&%&!$’’(
+! " # $ % & ’ ( )
+#’()*+,)-./,)0)1*2(3,45/67*,/4+46)2
+’$$(8$’8’#*+
+’$$"8$#8$#,-
+!"#$%&’’(+,-./0/123
+! ’ ’ ( ) * 4 5 6 7 8 9
+* +
+