fix: setup.sh dérive brain_name du dossier + kernel_version aligné 0.8.0

- brain_name: placeholder <BRAIN_NAME> dérivé de basename du dossier
- kernel_version: 0.9.0 → 0.8.0 (aligné avec brain-compose.yml)

brain-compose.local.yml.example

@@ -3,14 +3,14 @@
 # Copier depuis brain-compose.local.yml.example, remplir, NE PAS commiter.
 
 kernel_path: <BRAIN_ROOT>
-kernel_version: "0.9.0"
+kernel_version: "0.8.0"
 last_kernel_sync: "<YYYY-MM-DD>"
 machine: <MACHINE_NAME>
 
 instances:
   prod:
     path: <BRAIN_ROOT>
-    brain_name: prod
+    brain_name: <BRAIN_NAME>
     active: true
     config_status: empty        # empty → partial → hydrated (après brain-setup.sh)
     mode: prod

setup.sh

@@ -19,7 +19,10 @@ if [ ! -f "$BRAIN_ROOT/brain-compose.local.yml" ]; then
     MACHINE=$(hostname)
     sed -i "s|<MACHINE_NAME>|$MACHINE|g" "$BRAIN_ROOT/brain-compose.local.yml"
     sed -i "s|<YYYY-MM-DD>|$(date +%Y-%m-%d)|g" "$BRAIN_ROOT/brain-compose.local.yml"
-    echo "✅ brain-compose.local.yml cree"
+    # brain_name : dérivé du nom du dossier parent (ex: ~/Dev/Brain → brain)
+    BRAIN_NAME=$(basename "$BRAIN_ROOT" | tr '[:upper:]' '[:lower:]' | tr ' ' '-')
+    sed -i "s|<BRAIN_NAME>|$BRAIN_NAME|g" "$BRAIN_ROOT/brain-compose.local.yml"
+    echo "✅ brain-compose.local.yml cree (brain_name: $BRAIN_NAME)"
 else
     echo "✅ brain-compose.local.yml existe deja"
 fi