Update Dockerfile

Dockerfile

@@ -1,5 +1,6 @@
 # Use an official Python runtime as a parent image
-FROM python:3.10-slim-bullseye # Using -slim, not -slim-bullseye for broader compatibility initially
+# Using python:3.10-slim-bullseye for a Debian Bullseye based slim Python 3.10 environment
+FROM python:3.10-slim-bullseye
 
 # Set environment variables for Python, pip, and locale
 ENV PYTHONUNBUFFERED 1
@@ -11,8 +12,6 @@ ENV LANG C.UTF-8
 ENV LC_ALL C.UTF-8
 
 # Install system dependencies (as root)
-# Added build-essential for packages that might need to compile C code
-# Added libffi-dev (often needed by cryptography, a common sub-dependency)
 RUN apt-get update && apt-get install -y --no-install-recommends \
     ffmpeg \
     imagemagick \
@@ -57,7 +56,7 @@ RUN groupadd -r appgroup --gid 1000 && \
 
 # Set Streamlit home directory (already created and chowned)
 ENV STREAMLIT_HOME=/home/appuser/.streamlit
-ENV BROWSER_GATHERUSAGEDATA=false
+ENV BROWSER_GATHERUSAGEDATA=false # Corrected Streamlit env var for telemetry
 
 # Set the working directory in the container
 WORKDIR /app