Update dockerfile

dockerfile

@@ -1,37 +1,31 @@
-FROM python:3.9-slim
+FROM python:3.9
 
-# Set working directory
 WORKDIR /code
 
 # Install system dependencies
 RUN apt-get update && apt-get install -y \
-    build-essential \
     libpng-dev \
     libjpeg-dev \
-    && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
-# Copy requirements first for better caching
-COPY requirements.txt .
-
-# Install Python dependencies
-RUN pip install --no-cache-dir --upgrade pip && \
-    pip install --no-cache-dir -r requirements.txt
-
-# Copy application files
-COPY . .
+# Copy requirements and install dependencies
+COPY ./requirements.txt /code/requirements.txt
+RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
-# Create user
+# Create non-root user for Hugging Face Spaces
 RUN useradd -m -u 1000 user
 USER user
 ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
 
+# Set working directory
 WORKDIR $HOME/app
+
+# Copy all application files
 COPY --chown=user . $HOME/app
 
-# Expose port
+# Expose port (Hugging Face Spaces uses port 7860)
 EXPOSE 7860
 
-# Run the application
+# Command to run the application
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]