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/templates/default.yaml

@@ -0,0 +1,28 @@
+name: default
+description: Default generic agent template
+version: "1.0.0"
+
+tier: 0
+role: observer
+
+allowed_actions:
+  - read_docs
+  - read_inventory
+  - read_logs
+  - generate_plan
+
+forbidden_actions:
+  - execute_shell
+  - ssh_connect
+  - modify_files
+  - terraform_apply
+  - ansible_run
+
+default_config:
+  timeout: 300
+  max_iterations: 10
+
+error_budget:
+  max_total_errors: 8
+  max_same_error_repeats: 2
+  max_procedure_violations: 1