Add Dockerfile for proper Playwright installation

Dockerfile

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+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    fonts-liberation \
+    fonts-liberation2 \
+    fonts-noto-color-emoji \
+    fonts-noto-cjk \
+    libfontconfig1 \
+    libfreetype6 \
+    libnss3 \
+    libnspr4 \
+    libatk1.0-0 \
+    libatk-bridge2.0-0 \
+    libcups2 \
+    libdrm2 \
+    libxkbcommon0 \
+    libxcomposite1 \
+    libxdamage1 \
+    libxfixes3 \
+    libxrandr2 \
+    libgbm1 \
+    libpango-1.0-0 \
+    libcairo2 \
+    libasound2 \
+    libatspi2.0-0 \
+    libxshmfence1 \
+    libglib2.0-0 \
+    libdbus-1-3 \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements first for better caching
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Install Playwright browsers
+RUN playwright install chromium firefox
+RUN playwright install-deps chromium firefox || true
+
+# Copy application code
+COPY . .
+
+# Expose port
+EXPOSE 7860
+
+# Set environment variables
+ENV GRADIO_SERVER_NAME="0.0.0.0"
+ENV GRADIO_SERVER_PORT=7860
+
+# Run the application
+CMD ["python", "app.py"]