Update Dockerfile

Dockerfile

@@ -1,7 +1,7 @@
 # =========================
-# Simple Python 3.11 environment
+# Simple Python 3.12 environment
 # =========================
-FROM python:3.11-slim-bullseye AS final
+FROM python:3.12-slim-bullseye AS final
 ENV PYTHONUNBUFFERED=1 \
     PIP_NO_CACHE_DIR=1
 
@@ -50,7 +50,7 @@ start_service() {
   (
     cd "$dir"
     while true; do
-      echo "[startup] Starting $name (Python 3.11)…"
+      echo "[startup] Starting $name (Python 3.12)…"
       set +e
       "$py" main.py
       exit_code=$?
@@ -78,7 +78,7 @@ fi
 sleep 5
 
 # Start frontend Streamlit
-echo "[startup] Starting Streamlit client (Python 3.11)…"
+echo "[startup] Starting Streamlit client (Python 3.12)…"
 cd "$HOME/app/client"
 export PORT="${PORT:-7860}"
 exec "$HOME/venvs/client/bin/python" -m streamlit run app.py --server.port="$PORT" --server.address=0.0.0.0