feat: brain-template v2.0 — BSI-v3 complet + tiers documentés

- README reécrit : tiers free/pro/full + modèle clé API + multi-instance
- Sync agents/ (57 agents, kernel-isolation validated)
- Sync scripts/ BSI-v3 (file-lock, preflight, human-gate, brain-status)
- KERNEL.md v0.7.0 — zones + délégation + rendering + isolation
- brain-compose.yml v0.7.0 — rendering mode + kerneluser
- workflows/ — template + brain-engine exemple
- locks/.gitkeep + claims/.gitkeep
- helloWorld : RAG boot tier full only (bsi-rag retiré du template)

agents/testing.md

@@ -1,3 +1,11 @@
+---
+name: testing
+type: agent
+context_tier: hot
+domain: [tests, Jest, Vitest, coverage, TDD]
+status: active
+---
+
 # Agent : testing
 
 > Dernière validation : 2026-03-12