Raise character limits and document optional Blender MCP

docs/README.md

@@ -16,6 +16,7 @@ This folder holds the project documentation, visual references and generated QA
 - [`architecture.md`](architecture.md) — arc42 system architecture
 - [`getting-started.md`](getting-started.md) — setup, run/test commands and controls
 - [`asset-tooling.md`](asset-tooling.md) — image/model pipelines and screenshot gates
+- [`blender-mcp.md`](blender-mcp.md) — optional Blender MCP setup and safety
 - [`../tools/README.md`](../tools/README.md) — tool inventory, categories and test runner
 - [`gameplay.md`](gameplay.md) — controls, venues and escalation
 - [`joke-shop-map.md`](joke-shop-map.md) — Sunset Strip real-site mapping