fix docker issue

Dockerfile

@@ -2,11 +2,17 @@ FROM python:3.11-slim
 
 WORKDIR /app
 
+# Copy requirements first for better caching
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
+# Copy all application files
 COPY . .
 
+# Ensure proper permissions
+RUN chmod +x app.py
+
 EXPOSE 5000
 
-CMD ["python", "app.py"] 
+# Use python module syntax for better reliability
+CMD ["python", "-u", "app.py"]