forked from 1b-agent/opencadstudio-upstream
Brings codec PRs #84 (cross-version visual styles, table styles, subentity managers), #88 (viewport clipping flag, DXF boundary handle), #89 (DXF viewport snap/twist in degrees) and #92 (field format codes, event updates). With #88 a viewport keeps a stored boundary whether or not clipping is on, so a linked boundary alone no longer means "clipped": rendering, paper picking, VPCLIP and the Clipped property check the clipping flag too, and VPCLIP / MVIEW Object and Polygon set it. Before, OCS never set the flag, so its clipped viewports opened rectangular elsewhere. Co-Authored-By: Claude Opus 5.5 <[email protected]>