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/workflows/design-review.yaml

@@ -0,0 +1,57 @@
+name: Design Review
+description: Multi-agent design review pipeline
+trigger: manual
+
+inputs:
+  design_description:
+    type: text
+    description: "What is being reviewed"
+  requirements:
+    type: text
+    description: "Requirements to review against"
+
+steps:
+  - id: technical_review
+    agent: tech-lead
+    task: |
+      Perform a technical review of the following design:
+
+      DESIGN: {inputs.design_description}
+      REQUIREMENTS: {inputs.requirements}
+
+      Assess: structural adequacy, thermal performance, manufacturability,
+      and compliance with requirements. Identify risks and gaps.
+    timeout: 300
+
+  - id: optimization_review
+    agent: optimizer
+    task: |
+      Assess optimization potential for the following design:
+
+      DESIGN: {inputs.design_description}
+      REQUIREMENTS: {inputs.requirements}
+
+      Identify: parameters that could be optimized, potential weight/cost savings,
+      and whether a formal optimization study is warranted.
+    timeout: 300
+
+  # These two run in PARALLEL (no dependency between them)
+
+  - id: audit
+    agent: auditor
+    task: |
+      Perform a final quality review combining both the technical and optimization assessments:
+
+      TECHNICAL REVIEW:
+      {technical_review}
+
+      OPTIMIZATION REVIEW:
+      {optimization_review}
+
+      Assess completeness, identify conflicts between reviewers, and provide
+      a consolidated recommendation.
+    depends_on: [technical_review, optimization_review]
+    timeout: 180
+
+notifications:
+  on_complete: "Design review complete"