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.

defaults/flask-skeleton/README.md

@@ -0,0 +1,17 @@
+# Default UI assets (Flask + Skeleton)
+
+Estos archivos se usan como **default** cuando el `scripts/start.sh` configure stack por defecto:
+- Python/Flask
+- MariaDB
+- Skeleton CSS
+
+## Origen
+Copiados desde:
+- `~/git/Skeleton-2.0.4/css/normalize.css`
+- `~/git/Skeleton-2.0.4/css/skeleton.css`
+- `~/git/Skeleton-2.0.4/images/favicon.png`
+
+## Ubicación de destino recomendada en proyecto
+- `static/css/normalize.css`
+- `static/css/skeleton.css`
+- `static/images/favicon.png`