Go2 agentic architecture layers and self-evolution review

.gitignore

@@ -98,6 +98,9 @@ recording*.db
 # Rerun recordings
 *.rrd
 
+# MuJoCo runtime log written to the current working directory
+MUJOCO_LOG.TXT
+
 /misc/fresh-ubuntu-tests/cache
 
 # openspec

AGENTS.md

@@ -364,6 +364,22 @@ Code style rules:
 
 ---
 
+## Change Documentation
+
+Maintain the nearest scoped `PROJECT_CHANGELOG.md` for project-level work in
+this fork/branch. Use the repository root changelog for repo-wide changes, or a
+subsystem changelog such as `dimos/robot/unitree/go2/PROJECT_CHANGELOG.md` for
+focused subsystem architecture work. Add a reverse-chronological entry after
+substantive changes: architecture migrations, feature implementation, test
+fixes, blueprint rewiring, or upstream sync work.
+
+Each entry should include the date, branch, change summary, affected
+files/modules, validation performed, and open follow-up items. Small exploratory
+queries, pure discussion, and local command output that does not change the
+project do not need a changelog entry.
+
+---
+
 ## `all_blueprints.py` is auto-generated
 
 `dimos/robot/all_blueprints.py` is generated by `test_all_blueprints_generation.py`. After adding or renaming blueprints: