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/UPSTREAM-NOTES.md

@@ -0,0 +1,12 @@
+# Upstream notes — Skeleton
+
+Repositorio revisado: `https://github.com/getskeleton/Skeleton`
+Versión base usada: `2.0.4` (2014)
+
+Archivos copiados al template:
+- `css/normalize.css`
+- `css/skeleton.css`
+- `images/favicon.png`
+
+Referencia rápida de uso y mejoras:
+- `docs/skeleton-manual.md`