Fix database directory and add entrypoint script

Dockerfile

@@ -6,7 +6,7 @@ ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
 ENV FLASK_APP=app.py
 ENV FLASK_ENV=production
-ENV DATABASE_DIR=/app/data
+ENV DATABASE_DIR=/opt/apps/audiobook-studio-pro-v3
 
 # Set working directory
 WORKDIR /app
@@ -29,23 +29,19 @@ RUN pip install --no-cache-dir --upgrade pip \
 # Copy application code
 COPY . .
 
-# Create the default database directory inside the container
-# This will be used if no volume is mounted
-RUN mkdir -p /app/data && chmod 777 /app/data
-
-# Also create the external mount point directory
+# Create the database directory with full permissions
 RUN mkdir -p /opt/apps/audiobook-studio-pro-v3 && chmod 777 /opt/apps/audiobook-studio-pro-v3
 
+# Copy and setup entrypoint script
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
 # Expose port
 EXPOSE 5009
 
-# Health check - with longer start period to allow DB initialization
+# Health check
 HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
     CMD curl -f http://localhost:5009/health || exit 1
 
-# Use entrypoint script to ensure directory exists
-COPY entrypoint.sh /entrypoint.sh
-RUN chmod +x /entrypoint.sh
-
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["gunicorn", "--bind", "0.0.0.0:5009", "--workers", "2", "--threads", "4", "--timeout", "300", "--access-logfile", "-", "--error-logfile", "-", "app:app"]