chore: record journal

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

@@ -931,3 +931,25 @@ Completed and archived Phase 1: moved native road compiler, checks, workbench, s
 ### Status
 
 [OK] **Completed**
+
+
+## Session 44: Complete external road compiler split
+
+**Date**: 2026-08-26
+**Task**: Complete external road compiler split
+**Branch**: `experiment/road-compiler-rethink`
+
+### Summary
+
+Split road compiler into private road-compiler repository with history, pushed v0.1.2, migrated host to exact-tag CLI consumption, removed in-host package, passed regression tests and two-area parity.
+
+### Git Commits
+
+| Hash | Message |
+|------|---------|
+| `5cde080` | (see git log) |
+| `7d4b3b5` | (see git log) |
+
+### Status
+
+[OK] **Completed**