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)

scripts/brain-tier-count.sh

@@ -0,0 +1,74 @@
+#!/usr/bin/env bash
+# brain-tier-count.sh — Audite les lignes chargées en context_tier: always
+# Alerte si > 1500 lignes (seuil warn) ou > 2000 lignes (seuil KPI fail)
+#
+# Usage : bash scripts/brain-tier-count.sh
+# Appelé par : helloWorld au boot (vérification rapide)
+#
+# Ref : brain-constitution.md ## KPI NORTH STAR
+#   always-tier total < 1 500 lignes → ok
+#   always-tier total > 2 000 lignes → context-tier-split requis (KPI fail)
+
+set -euo pipefail
+
+BRAIN_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+WARN_THRESHOLD=1500
+FAIL_THRESHOLD=2000
+
+total_lines=0
+declare -A file_lines
+files_found=()
+
+# Extraire et vérifier uniquement le frontmatter YAML (entre les deux premiers ---)
+is_always_tier() {
+    python3 - "$1" <<'PYEOF'
+import sys, re
+with open(sys.argv[1], 'r', errors='replace') as f:
+    content = f.read()
+# Extraire le frontmatter (entre --- et ---)
+m = re.match(r'^---\n(.*?)\n---', content, re.DOTALL)
+if not m:
+    sys.exit(1)
+frontmatter = m.group(1)
+if re.search(r'^context_tier:\s*always', frontmatter, re.MULTILINE):
+    sys.exit(0)
+sys.exit(1)
+PYEOF
+}
+
+# Trouver tous les fichiers always-tier
+while IFS= read -r file; do
+    [[ -f "$file" ]] || continue
+    if is_always_tier "$file"; then
+        lines=$(wc -l < "$file")
+        file_lines["$file"]=$lines
+        total_lines=$((total_lines + lines))
+        files_found+=("$file")
+    fi
+done < <(find "$BRAIN_ROOT" -maxdepth 3 \( -name "*.md" -o -name "*.yml" \) | \
+         grep -v '\.git\|node_modules\|_template\|\.example')
+
+# Affichage
+echo "=== Brain Context Tier: always — Audit ==="
+echo ""
+
+# Trier par taille décroissante
+for file in "${files_found[@]}"; do
+    rel="${file#$BRAIN_ROOT/}"
+    printf "  %4d lignes  %s\n" "${file_lines[$file]}" "$rel"
+done | sort -rn
+
+echo ""
+echo "────────────────────────────────────"
+printf "  TOTAL : %d lignes\n" "$total_lines"
+
+if [[ $total_lines -gt $FAIL_THRESHOLD ]]; then
+    echo "  🔴 KPI FAIL — context-tier-split requis (brain-constitution.md §3)"
+    echo "     Seuil : $FAIL_THRESHOLD / Actuel : $total_lines"
+elif [[ $total_lines -gt $WARN_THRESHOLD ]]; then
+    echo "  ⚠️  WARN — approche du seuil KPI ($WARN_THRESHOLD)"
+    echo "     Seuil fail : $FAIL_THRESHOLD / Actuel : $total_lines"
+else
+    echo "  ✅ OK — sous le seuil ($WARN_THRESHOLD)"
+fi
+echo "────────────────────────────────────"