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>

checkpoint/storage/ckpt-20260123-232655-1b3e9b12.json

@@ -0,0 +1,62 @@
+{
+  "checkpoint_id": "ckpt-20260123-232655-1b3e9b12",
+  "created_at": "2026-01-23T23:26:55.261297+00:00",
+  "session_id": null,
+  "phase": {
+    "name": "Phase 5: Agent Bootstrapping",
+    "number": 5,
+    "status": "in_progress",
+    "started_at": "2026-01-23T23:26:54.276497+00:00",
+    "completed_at": null,
+    "notes": "Multi-Level README/STATUS Skill COMPLETE: 57 directories initialized with README.md + STATUS.md, CLI tools (sweep/update/dashboard), STATUS_PROTOCOL.md documentation"
+  },
+  "phases_completed": [
+    1,
+    2,
+    3,
+    4
+  ],
+  "tasks": [],
+  "active_task_id": null,
+  "dependencies": [
+    {
+      "name": "vault",
+      "type": "service",
+      "status": "available",
+      "endpoint": "https://127.0.0.1:8200",
+      "last_checked": "2026-01-23T23:26:55.256850+00:00"
+    },
+    {
+      "name": "dragonfly",
+      "type": "database",
+      "status": "available",
+      "endpoint": "redis://127.0.0.1:6379",
+      "last_checked": "2026-01-23T23:26:55.258082+00:00"
+    },
+    {
+      "name": "ledger",
+      "type": "database",
+      "status": "available",
+      "endpoint": "/opt/agent-governance/ledger/governance.db",
+      "last_checked": "2026-01-23T23:26:55.258142+00:00"
+    }
+  ],
+  "variables": {},
+  "recent_outputs": [
+    {
+      "type": "evidence",
+      "id": "evd-20260123-171822-13ed5e2e",
+      "action": "terraform",
+      "success": true,
+      "timestamp": "2026-01-23T17:18:22.342850+00:00"
+    }
+  ],
+  "agent_id": null,
+  "agent_tier": 0,
+  "content_hash": "68b81b64fafe585e",
+  "parent_checkpoint_id": "ckpt-20260123-232137-c4ef8810",
+  "estimated_tokens": 360,
+  "orchestration_mode": "disabled",
+  "pending_instructions": [],
+  "last_model_response": null
+}