Refactor code structure for improved readability and maintainability

backend/app/services/parser/__init__.py

@@ -1,7 +1,6 @@
-# src/services/parser/__init__.py
 """文档解析服务"""
 
 from .pdf_parser import PDFParser
 from .docx_parser import DocxParser
 
-__all__ = ["PDFParser", "DocxParser"]
+__all__ = ["PDFParser", "DocxParser"]

backend/app/services/parser/docx_parser.py

@@ -1,4 +1,3 @@
-# src/services/parser/docx_parser.py
 """Word文档解析 - 使用python-docx"""
 
 from docx import Document
@@ -284,4 +283,4 @@ def parse_docx(file_path: str) -> DocxDocumentContent:
 def parse_docx_to_markdown(file_path: str) -> str:
     """便捷函数：解析Word并返回Markdown"""
     parser = DocxParser()
-    return parser.parse_to_markdown(file_path)
+    return parser.parse_to_markdown(file_path)

backend/app/services/parser/mineru_parser.py

@@ -1,4 +1,3 @@
-# src/services/parser/mineru_parser.py
 """MinerU多模态PDF解析 - 版面感知解析"""
 
 from typing import Optional, Dict
@@ -201,4 +200,4 @@ def parse_with_mineru(file_path: str) -> MinerUResult:
 def parse_pdf_smart(file_path: str) -> str:
     """便捷函数：智能解析PDF（自动选择最佳解析器）"""
     orchestrator = ParserOrchestrator()
-    return orchestrator.parse_pdf(file_path)
+    return orchestrator.parse_pdf(file_path)

backend/app/services/parser/pdf_parser.py

@@ -1,4 +1,3 @@
-# src/services/parser/pdf_parser.py
 """PDF文档解析 - 使用PyMuPDF基础解析"""
 
 import fitz  # PyMuPDF
@@ -265,4 +264,4 @@ def parse_pdf(file_path: str, **kwargs) -> PDFDocumentContent:
 def parse_pdf_to_markdown(file_path: str) -> str:
     """便捷函数：解析PDF并返回Markdown"""
     parser = PDFParser()
-    return parser.parse_to_markdown(file_path)
+    return parser.parse_to_markdown(file_path)