Add daily git backup habit to AGENTS.md

AGENTS.md

@@ -27,6 +27,14 @@ git commit -m "Add agent workspace"
 - On session start, read today + yesterday if present.
 - Capture durable facts, preferences, and decisions; avoid secrets.
 
+## Daily habit: Git backup
+This workspace is a git repo. At end of each day/session:
+```bash
+cd ~/.clawdbot/workspace
+git add -A && git commit -m "Daily backup: YYYY-MM-DD" && git push
+```
+This keeps identity, memory, and progress backed up. Consider making it private on GitHub.
+
 ## Customize
 - Add your preferred style, rules, and "memory" here.