Add OpenClaw setup documentation and utilities

- SETUP.md: Complete deployment guide with WebSocket configuration
- portainer-setup.sh: Automated Portainer stack creation script
- fix-permissions.sh: Storage directory permission fixer
- .gitignore: Ensure .credentials file is not committed

Note: WebSocket support must be enabled in nginx-proxy-manager for OpenClaw to work.

openclaw/fix-permissions.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+# Fix OpenClaw storage permissions
+
+echo "Creating OpenClaw storage directories..."
+sudo mkdir -p /srv/openclaw/config /srv/openclaw/workspace
+sudo chown -R 1000:1000 /srv/openclaw
+sudo chmod -R 755 /srv/openclaw
+
+echo "Restarting OpenClaw container..."
+docker restart openclaw
+
+echo "Done! Check logs with: docker logs openclaw -f"