Initial commit: OpenClaw workspace setup

- Added core identity/soul files
- Added .gitignore to protect sensitive data
- Configured Matrix channel with autoReply and groupAllowFrom
- Note: /root/.openclaw/openclaw.json contains active config (Matrix fixes)

HEARTBEAT.md

@@ -0,0 +1,5 @@
+# HEARTBEAT.md
+
+# Keep this file empty (or with only comments) to skip heartbeat API calls.
+
+# Add tasks below when you want the agent to check something periodically.