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/workspaces/shared/skills/orchestrate/README.md

@@ -0,0 +1,116 @@
+# Orchestration Engine — Atomizer HQ
+
+> Multi-instance synchronous delegation, workflow pipelines, and inter-agent coordination.
+
+## Overview
+
+The Orchestration Engine enables structured communication between 8 independent OpenClaw agent instances running on Discord. It replaces fire-and-forget delegation with synchronous handoffs, chaining, validation, and reusable YAML workflows.
+
+## Architecture
+
+```
+┌─────────────────────────────────────────────────┐
+│             LAYER 3: WORKFLOWS                  │
+│       YAML multi-step pipelines                 │
+│   (workflow.py — parallel, sequential, gates)   │
+├─────────────────────────────────────────────────┤
+│           LAYER 2: SMART ROUTING                │
+│     Capability registry + channel context       │
+│  (AGENTS_REGISTRY.json + fetch-channel-context) │
+├─────────────────────────────────────────────────┤
+│         LAYER 1: ORCHESTRATION CORE             │
+│   Synchronous delegation + result return        │
+│      (orchestrate.py — inotify + handoffs)      │
+├─────────────────────────────────────────────────┤
+│           EXISTING INFRASTRUCTURE               │
+│  8 OpenClaw instances, hooks API, shared fs     │
+└─────────────────────────────────────────────────┘
+```
+
+## Files
+
+| File | Purpose |
+|------|---------|
+| `orchestrate.py` | Core delegation engine — sends tasks, waits for handoff files via inotify |
+| `orchestrate.sh` | Thin bash wrapper for orchestrate.py |
+| `workflow.py` | YAML workflow engine — parses, resolves deps, executes pipelines |
+| `workflow.sh` | Thin bash wrapper for workflow.py |
+| `fetch-channel-context.sh` | Fetches Discord channel history as formatted context |
+| `metrics.py` | Analyzes handoff files and workflow runs for stats |
+| `metrics.sh` | Thin bash wrapper for metrics.py |
+
+## Usage
+
+### Single delegation
+```bash
+# Synchronous — blocks until agent responds
+python3 orchestrate.py webster "Find CTE of Zerodur" --caller manager --timeout 120
+
+# With channel context
+python3 orchestrate.py tech-lead "Review thermal margins" --caller manager --channel-context technical --channel-messages 20
+
+# With validation
+python3 orchestrate.py webster "Research ULE properties" --caller manager --validate --timeout 120
+```
+
+### Workflow execution
+```bash
+# Dry-run (validate without executing)
+python3 workflow.py quick-research --input query="CTE of ULE" --caller manager --dry-run
+
+# Live run
+python3 workflow.py quick-research --input query="CTE of ULE" --caller manager --non-interactive
+
+# Material trade study (3-step pipeline)
+python3 workflow.py material-trade-study \
+  --input materials="Zerodur, Clearceram-Z HS, ULE" \
+  --input requirements="CTE < 0.01 ppm/K" \
+  --caller manager --non-interactive
+```
+
+### Metrics
+```bash
+python3 metrics.py text    # Human-readable
+python3 metrics.py json    # JSON output
+```
+
+## Handoff Protocol
+
+Agents write structured JSON to `/home/papa/atomizer/handoffs/{runId}.json`:
+
+```json
+{
+  "schemaVersion": "1.0",
+  "runId": "orch-...",
+  "agent": "webster",
+  "status": "complete|partial|blocked|failed",
+  "result": "...",
+  "artifacts": [],
+  "confidence": "high|medium|low",
+  "notes": "...",
+  "timestamp": "ISO-8601"
+}
+```
+
+## ACL Matrix
+
+| Caller | Can delegate to |
+|--------|----------------|
+| manager | All agents |
+| tech-lead | webster, nx-expert, study-builder, secretary |
+| optimizer | webster, study-builder, secretary |
+| Others | Cannot sub-delegate |
+
+## Workflow Templates
+
+- `quick-research.yaml` — 2 steps: Webster research → Tech-Lead validation
+- `material-trade-study.yaml` — 3 steps: Webster research → Tech-Lead evaluation → Auditor review
+- `design-review.yaml` — 3 steps: Tech-Lead + Optimizer (parallel) → Auditor consolidation
+
+## Result Storage
+
+- Individual handoffs: `/home/papa/atomizer/handoffs/orch-*.json`
+- Sub-delegations: `/home/papa/atomizer/handoffs/sub/`
+- Workflow runs: `/home/papa/atomizer/handoffs/workflows/{workflow-run-id}/`
+  - Per-step: `{step-id}.json`
+  - Summary: `summary.json`