DocVortex 0.5.6

Changes

• Add batched drawing-line extraction on the PDFium side (new Rust drawing_lines module wired through the object bridge, classification and graphics paths), and increment the private native protocol to 24.

Compatibility

• Restart existing processes after upgrading so cached backends are re-selected under protocol 24.

Full Changelog: v0.5.5...v0.5.6