chore: record journal

.trellis/workspace/dingkang/journal-1.md

@@ -110,3 +110,24 @@ Moved building assembly from generate_scene.py into blender/osmassets/building.p
 ### Status
 
 [OK] **Completed**
+
+
+## Session 6: Extract road assembly module
+
+**Date**: 2026-08-03
+**Task**: Extract road assembly module
+**Branch**: `main`
+
+### Summary
+
+Moved Blender road GeoJSON assembly and OSM fallback roads into blender/osmassets/roads.py while preserving road_counts, Layer catalog warnings, scene metadata, and SCENE_DONE output. Verified py_compile, unittest, task validation, and Blender/Cesium parity before/after as identical for both sample areas.
+
+### Git Commits
+
+| Hash | Message |
+|------|---------|
+| `0f3c1ee` | (see git log) |
+
+### Status
+
+[OK] **Completed**