Refactor code structure for improved readability and maintainability

data/pdf_chunks/page_12.txt

@@ -0,0 +1,25 @@
+=== 第 12 页切片结果 ===
+图片: page_12.png
+MD5: 36205c3c596cc35b23b053fb82ff16f0
+文本长度: 380 字符
+切片大小: 500 字符
+切片数量: 1 个
+
+--- Chunk 0 ---
+长度: 380 字符
+内容:
+2\?@)shk7H7!&+00 u!)345?fN54v"L!++00"]"4JH)L!++00#
+@=%$#12345Z~C"^d!
+12O#$
+< "!5#34?@91AB
+($!%! 5]34?@91AB"%"$"$$$$$
+qt#k?&/EB C 1 2 3 4 5 ? @ H l s } B#) " 5 4 " L !++ 00"] N 4 J H ) L
+!++00#@=&$#ym12345Z~CN^d!
+a312345C3gNOPWN@?EFGH#3V12Wo%YCH)[")?<sG3,;
+<#4~CTNOP"WN@$k7t[?@Ni\%?8MHqt#S}[<sG\,;_?EB#^
+EBC7~2\^8MH6DO="M<??@ABC6D"!.;<$}!&+00 u!
+12O#$
+< (!5]34?@91AB
+)
+!"!"#"#!$%%&
+