Update Dockerfile

Dockerfile

@@ -1,6 +1,6 @@
 FROM python:3.10-slim
 
-# Install system dependencies (wget, gnupg for Playwright)
+# Install system dependencies
 RUN apt-get update && apt-get install -y \
     wget \
     gnupg \
@@ -8,17 +8,15 @@ RUN apt-get update && apt-get install -y \
 
 WORKDIR /app
 
-# Install Python deps
+# Copy files
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Install Playwright Browsers
+# Install Playwright and Browsers
 RUN pip install playwright
 RUN playwright install --with-deps chromium
 
-# Copy app code
 COPY . .
 
-# Start Server (Render uses PORT env var)
-# Use ${PORT:-10000} to set a default if the variable is missing
+# Use ${PORT:-10000} to prevent the "Error: '' is not a valid port number"
 CMD gunicorn app:app --bind 0.0.0.0:${PORT:-10000} --timeout 120