migrate cc-config to chezmoi: add all skills, agents, and openclaw installer
- Add 4 missing skills: chromedp-alpine-container, claude-memory-api,
openclaw-custom-model-provider, webrtc-turn-shared-secret
- Add 9 custom agents: sre, dba, devops-engineer, platform-engineer,
security-engineer, network-engineer, observability-engineer,
home-automation-engineer, cluster-health-checker
- Add openclaw-install.sh: standalone script to clone dotfiles and
install skills/agents/hooks/settings to OpenClaw's home directory
Replaces the cc-config NFS volume + sync.sh approach
c95ffa03c5