refactor dockerfile 3 fix permission user non root

Dockerfile

@@ -22,7 +22,10 @@ RUN set -ex \
     && apt-get upgrade -y \
     && apt-get install -y libjpeg-dev zlib1g-dev \
     # 🔨 Buat folder ml-models untuk menyimpan model
-    && mkdir -p /app/ml-models && chown -R appuser:appgroup /app/ml-models \
+    && mkdir -p /app/ml-models/tinybert-sentiment-analysis \
+             /app/ml-models/tinybert-disaster-tweet \
+             /app/ml-models/vit-human-pose-classification \
+    && chown -R appuser:appgroup /app/ml-models \
     && apt-get autoremove -y \
     && apt-get clean -y \
     && rm -rf /var/lib/apt/lists/*