* fix(parse): import email.message and repair pdfplumber test mock
- email_parser.py uses email.message.Message at class-definition time but
only did 'import email', so 'import semantica.parse' fails in a fresh
Python process unless something else imported email.message first
- test_pdf_parser patched semantica.parse.pdf_parser.pdfplumber, which
never exists as a module attribute (pdfplumber is imported inside
PDFParser.parse); inject a fake module via sys.modules instead
* fix(parse): warn when PDF parse yields no text layer (scanned PDFs)
Scanned (image-only) PDFs parsed via the default pdfplumber route
returned an empty full_text with progress status 'completed' - no error,
no warning - so the failure only surfaced far downstream. Warn in
PDFParser.parse() when every parsed page yields no text (and extract_text
is enabled), pointing users to method='docling' with enable_ocr=True.
* fix(parse): improve scanned PDF detection
---------
Co-authored-by: shanyu910 <208111055+shanyu910@users.noreply.github.com>
Co-authored-by: Sameer Kadam <sskadam6305@gmail.com>
- Robust ID extraction in CentralityCalculator, CommunityDetector, and ConnectivityAnalyzer
- Support for direct Entity objects and dictionaries as node identifiers
- Improved Entity hashability in utils/types.py
- Added integration test to verify fix and prevent regression
