chore: install blender-skills 1.3.0 for modelling work

94 MIT-licensed skill packs plus their shared references, copied unedited from
the local checkout of github.com/arjun988/blender-skills at commit 8f778d2
(1.2 MB, 269 Markdown files). They are agent instructions, not add-ons; the
pipeline still drives Blender headlessly through bpy, so the optional Blender MCP
server is not required. Provenance recorded in THIRD_PARTY_NOTICES.md and the
version, source, and update procedure in Docs/toolchain.md.

THIRD_PARTY_NOTICES.md

@@ -43,6 +43,14 @@ Rules that still apply, because they are about shipped output rather than local
 - Venue lettering, signage artwork, and trademarks are separate rights from the photograph. Copying a façade's proportions is not the same as reproducing its signage.
 - A reference image whose provenance cannot be found locally must not be used at all.
 
+## Agent tooling (development only, not shipped)
+
+| Component | Version | Licence | Status |
+| --- | --- | --- | --- |
+| blender-skills | `1.3.0`, upstream commit `8f778d2` | MIT, © 2026 blender-skills contributors (<https://github.com/arjun988/blender-skills>) | verified — instruction and reference material for agents, committed under `.agents/skills/blender-skills/`, never built into a build or shipped |
+
+Copied 2026-11-06 from a local checkout at `~/.agents/skills/blender-skills/.claude/skills/`, preserving upstream layout and filenames. No content was edited.
+
 ## Assets
 
 No shipped 3D, texture, or audio assets exist yet. Add a row per asset category with author, source, licence, and redistribution status before the first content commit.