fix: simplify Docker setup by removing entrypoint script

Remove entrypoint script complexity and run as root to avoid UID mismatch
issues. The data directory will be created with proper ownership by Ansible.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: dubadub

Dockerfile

@@ -64,19 +64,12 @@ COPY --from=builder /app/src/web/static /app/src/web/static
 # Copy templates
 COPY --from=builder /app/src/web/templates /app/src/web/templates
 
-# Copy entrypoint script
-COPY docker-entrypoint.sh /usr/local/bin/
-RUN chmod +x /usr/local/bin/docker-entrypoint.sh
-
 # Expose port (default, can be overridden by env var)
 EXPOSE 3100
 
 # Health check
 HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
     CMD curl -f http://localhost:${PORT:-3100}/health || exit 1
 
-# Set entrypoint to handle permissions and user switching
-ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
-
 # Run the binary
 CMD ["federation", "serve"]