docker file added

dockerfile

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+# Use Python 3.11 (Stable for AI libraries)
+FROM python:3.11-slim
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Install system dependencies required for OpenCV
+# (Even 'headless' OpenCV sometimes needs these basic libs)
+RUN apt-get update && apt-get install -y \
+    libglib2.0-0 \
+    libsm6 \
+    libxext6 \
+    libxrender-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements first (to cache dependencies)
+COPY requirements.txt .
+
+# Install Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the rest of your application code
+COPY . .
+
+# Expose the port your app runs on
+EXPOSE 5000
+
+# Command to run the app using Gunicorn (Production server)
+# "app:app" means "look in app.py for the 'app' variable"
+CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--timeout", "120", "app:app"]