pre remote host

Dockerfile

@@ -21,6 +21,9 @@ RUN pip install --no-cache-dir --upgrade pip && \
 # Copy application code
 COPY main.py .
 
+# Copy .env.example for reference (actual .env will be mounted at runtime)
+COPY .env.example .
+
 # Create input directory and set permissions
 RUN mkdir -p /app/input && \
     chown -R appuser:appuser /app