feat: add Atomizer HQ multi-agent cluster infrastructure

- 8-agent OpenClaw cluster (Manager, Tech-Lead, Secretary, Auditor,
  Optimizer, Study-Builder, NX-Expert, Webster)
- Orchestration engine: orchestrate.py (sync delegation + handoffs)
- Workflow engine: YAML-defined multi-step pipelines
- Agent workspaces: SOUL.md, AGENTS.md, MEMORY.md per agent
- Shared skills: delegate, orchestrate, atomizer-protocols
- Capability registry (AGENTS_REGISTRY.json)
- Cluster management: cluster.sh, systemd template
- All secrets replaced with env var references

hq/.gitignore

@@ -0,0 +1,40 @@
+# Runtime / secrets
+.env
+config/.discord-tokens.env
+config/*.env
+instances/*/agents/
+instances/*/env
+instances/*/*.db
+instances/*/*.db-*
+instances/*/*.sqlite
+instances/*/*.sqlite-*
+instances/*/memory/
+instances/*/cron/
+instances/*/*.bak*
+instances/*/update-check.json
+
+# Session data & logs  
+handoffs/*.json
+handoffs/workflows/*/
+logs/**/*.jsonl
+logs/**/*.log
+
+# Python / Node
+.venv/
+node_modules/
+__pycache__/
+
+# Legacy / deprecated
+bridge/
+discord-bridge/
+docker-compose.yml
+
+# OS
+.DS_Store
+*.swp
+
+# Browser/runtime state
+instances/*/browser/
+instances/*/canvas/
+instances/*/devices/
+instances/*/identity/