Fix download script path detection

Use absolute path instead of relative /bin
Ensures models are downloaded to correct location regardless of
current working directory when running the script

comfyui/download-more-models.sh

@@ -4,8 +4,10 @@
 
 set -e
 
-MODELS_DIR="$(dirname "$0")/models/checkpoints"
-VAE_DIR="$(dirname "$0")/models/vae"
+# Détection robuste du répertoire du script
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+MODELS_DIR="$SCRIPT_DIR/models/checkpoints"
+VAE_DIR="$SCRIPT_DIR/models/vae"
 
 mkdir -p "$MODELS_DIR" "$VAE_DIR"