Initial commit: Agent Governance System Phase 8

Phase 8 Production Hardening with complete governance infrastructure:

- Vault integration with tiered policies (T0-T4)
- DragonflyDB state management
- SQLite audit ledger
- Pipeline DSL and templates
- Promotion/revocation engine
- Checkpoint system for session persistence
- Health manager and circuit breaker for fault tolerance
- GitHub/Slack integrations
- Architectural test pipeline with bug watcher, suggestion engine, council review
- Multi-agent chaos testing framework

Test Results:
- Governance tests: 68/68 passing
- E2E workflow: 16/16 passing
- Phase 2 Vault: 14/14 passing
- Integration tests: 27/27 passing

Coverage: 57.6% average across 12 phases

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

pipeline/examples/infrastructure-deploy.yaml

@@ -0,0 +1,102 @@
+name: infrastructure-deploy
+version: "1.0.0"
+description: Deploy infrastructure with plan review and verification
+
+metadata:
+  author: system
+  tags:
+    - infrastructure
+    - terraform
+    - production
+
+inputs:
+  target_environment:
+    type: string
+    required: true
+    description: Target environment (sandbox, staging, prod)
+  resource_type:
+    type: string
+    required: true
+    description: Type of resource to deploy
+
+stages:
+  - name: plan
+    type: agent
+    agent:
+      template: terraform
+      tier: 1
+      config:
+        action: plan
+        auto_approve: false
+    artifacts:
+      outputs:
+        - terraform-plan
+    timeout: 10m
+
+  - name: security-review
+    type: agent
+    agent:
+      template: code-review
+      tier: 0
+      config:
+        review_focus:
+          - security
+          - governance_compliance
+    requires:
+      - plan
+    artifacts:
+      inputs:
+        - terraform-plan
+      outputs:
+        - security-review-report
+    timeout: 5m
+
+  - name: approval
+    type: gate
+    gate:
+      approval: human
+      timeout: 30m
+      approvers:
+        - infrastructure-team
+    requires:
+      - security-review
+
+  - name: apply
+    type: agent
+    agent:
+      template: terraform
+      tier: 2
+      config:
+        action: apply
+        plan_id: "${stages.plan.artifacts.terraform-plan}"
+    requires:
+      - approval
+    artifacts:
+      inputs:
+        - terraform-plan
+      outputs:
+        - apply-log
+        - state-diff
+    timeout: 15m
+    on_failure:
+      action: rollback
+      retries: 0
+
+  - name: verify
+    type: agent
+    agent:
+      template: default
+      tier: 0
+      config:
+        action: verify_deployment
+    requires:
+      - apply
+    timeout: 5m
+
+on_failure:
+  action: notify
+  notify:
+    - infrastructure-team
+    - security-team
+
+timeout: 1h