Review pass for extensions.blender.org. Nothing changes in what the add-on does; the listener behind the editor's Send to Blender is built differently.

• The listener no longer runs inside Blender. bpy is main-thread only, so an HTTP server on a background thread was a crash waiting to happen. server.py now runs as a helper process on Blender's bundled Python and owns the socket; it spools each received scene into a temporary folder and a bpy.app.timers callback imports it on Blender's main thread. No threading, no queue.
• The helper always goes away. It stops with Blender, and if Blender quits without stopping it, a stale heartbeat makes it exit on its own and take its temporary folder with it.
• The package is built from an allowlist. [build] paths in the manifest names the files that make up the extension, so nothing else in the source tree can end up in the zip. CI builds with blender --command extension build, validates the result, and fails if the package contains an archive.
• Listener failures now say why, in the Pascal sidebar tab.

Unchanged: the HTTP contract, the origin allowlist and its Allow button, importing, material polish, and the lighting presets.

Install: Blender → Edit → Preferences → Get Extensions → ▾ → Install from Disk → pascal-0.6.0.zip

First public build of the Pascal Blender extension (Blender 4.2+).

• Import Pascal GLBs as level and kind collections, labelled objects, zone floors, door/window clips as actions
• Send to Blender: loopback listener the Pascal editor hands the live scene to (origin allowlist, Allow button)
• Material polish: glass with transmission, leaf cutout alpha, calmer site ground
• Lighting presets on Blender's bundled HDRIs: Daylight, Golden hour, Overcast, Night (room + porch lights), Physical sky

Install: Blender → Edit → Preferences → Get Extensions → ▾ → Install from Disk → pascal-0.5.0.zip