DocVortex 0.4.15

Changes

• Add PDFPageVectorGeometry to the public SDK: PDFPage.get_vector_geometry() materializes drawing lines and path summaries in a single traversal without holding PDFium handles, and prepare_table_page / prepare_text_evidence accept an optional vector_geometry= for reuse. Hosts reusing page primitives should depend on docvortex>=0.4.15,<1.
• Speed up same-baseline line merging with a sweep-based candidate prefilter (the original acceptance rules still decide; dense or malformed pages fall back to the original traversal) and check the table barrier earlier when connecting overlapping inline clusters.

Full Changelog: v0.4.14...v0.4.15