Update Dockerfile

Dockerfile

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+FROM python:3.12-slim
+
+WORKDIR /app
+
+# Install system essentials
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements first to leverage Docker caching
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the rest of the application
+COPY . .
+
+# Fix Windows line endings in the shell script and make it executable
+RUN sed -i 's/\r$//' start.sh
+RUN chmod +x start.sh
+
+# Expose ports
+EXPOSE 8000
+EXPOSE 7860
+
+# Use the shell form of CMD to ensure start.sh runs correctly
+CMD ["/bin/bash", "./start.sh"]