Feat: Refact pipeline (#13826)

### What problem does this PR solve?

### Type of change

- [x] New Feature (non-breaking change which adds functionality)
- [x] Refactoring

---------

Co-authored-by: Zhichang Yu <yuzhichang@gmail.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

deepdoc/parser/mineru_parser.py

@@ -35,6 +35,7 @@ from PIL import Image
 from strenum import StrEnum
 
 from deepdoc.parser.pdf_parser import RAGFlowPdfParser
+from deepdoc.parser.utils import extract_pdf_outlines
 
 LOCK_KEY_pdfplumber = "global_shared_lock_pdfplumber"
 if LOCK_KEY_pdfplumber not in sys.modules:
@@ -576,7 +577,7 @@ class MinerUParser(RAGFlowPdfParser):
                 case MinerUContentType.DISCARDED:
                     continue  # Skip discarded blocks entirely
 
-            if section and parse_method == "manual":
+            if section and parse_method in {"manual", "pipeline"}:
                 sections.append((section, output["type"], self._line_tag(output)))
             elif section and parse_method == "paper":
                 sections.append((section + self._line_tag(output), output["type"]))
@@ -602,6 +603,7 @@ class MinerUParser(RAGFlowPdfParser):
     ) -> tuple:
         import shutil
 
+        self.outlines = extract_pdf_outlines(binary if binary is not None else filepath)
         temp_pdf = None
         created_tmp_dir = False