refactor: complete bootstrap of ARNES agent harness framework

- Add complete agent harness structure with 8 roles (leader, triager, architect, implementer, reviewer, security, qa, documenter)
- Implement strict workflow with 9 stages and mandatory gates
- Add comprehensive verification script and runtime status tracking
- Create artifact-based evidence system with contracts and schemas
- Add agent policy matrix with permissions and anti-cheat rules
- Include test suite (44 tests passing) and CI-ready structure
- Add documentation: README, HOWTO, CHECKPOINTS, templates
- Configure model routing policies and token-aware task assignment
- Add BDD/SDD specification guides and feature templates
- Include starter pack for quick project onboarding

All verification checks pass. Framework ready for production use.

harness/workflow.stages.yml

@@ -4,6 +4,15 @@ feature_states:
   allowed: [pending, in_progress, blocked, done]
 
 stages:
+  - name: triage_translate
+    owner: leader
+    optional: true
+    input:
+      - backlog/features.json
+      - work/current.md
+    output:
+      - work/artifacts/<feature_id>/triage.md
+
   - name: intake
     owner: leader
     input:
@@ -41,6 +50,12 @@ stages:
     output:
       - work/artifacts/<feature_id>/qa.json
 
+  - name: documentation_gate
+    owner: documenter
+    required: true
+    output:
+      - work/artifacts/<feature_id>/documenter.md
+
   - name: close
     owner: leader
     required: true
@@ -52,4 +67,5 @@ close_requirements:
   - reviewer.json.verdict == "APPROVED"
   - security.json.verdict == "APPROVED"
   - qa.json.verdict == "APPROVED"
+  - documenter.md exists
   - scripts/verify.sh exit_code == 0