refactor(pptx): streamline PPTX document parsing and extraction process

- Removed unused parameters and methods from PptxDocumentParser to simplify the code.
- Updated the extract method to directly extract elements from each slide using the configured extractors.
- Adjusted the BaseExtractor class to ensure it returns a list of Element objects.
- Enhanced logging for better error handling during the extraction process.

Author: maxpill

packages/ragbits-document-search/src/ragbits/document_search/ingestion/parsers/pptx/extractors/extractors.py

@@ -9,6 +9,8 @@
 from pptx.presentation import Presentation
 from pptx.slide import Slide
 
+from ragbits.document_search.documents.element import Element
+
 from .dataclasses import (
     ExtractedHyperlink,
     ExtractedImage,
@@ -24,7 +26,7 @@ class BaseExtractor(ABC):
     """Base class for all PPTX content extractors."""
 
     @abstractmethod
-    def extract(self, presentation: Presentation, slide: Slide | None = None) -> list[Any]:
+    def extract(self, presentation: Presentation, slide: Slide | None = None) -> list[Element]:
         """Extract content from the presentation or specific slide."""
         pass