Update .gitignore, Dockerfiles, and data retrieval logic; refactor benchmarks

- Added new paths (**/benchmark_models, **/benchmark_trajectory_data) to .gitignore
- Updated Dockerfiles for foundation model and cron job:
  - Set DEBIAN_FRONTEND to non-interactive to avoid tzdata prompts during installation
  - Preconfigured tzdata settings for consistent timezone configuration
- Modified docker-compose.yaml:
  - Renamed and added sections for foundation model services
- Deleted obsolete benchmark_model_accuracy.py script
- Refactored benchmark_number_of_runs.py:
  - Adjusted paths to benchmark data directories
  - Updated training notes and increased trajectory limits
- Improved data_retrieval module:
  - Added default robot UUID for delete_files function
  - Refined download logging messages
  - Commented out unused logger statements
- Minor adjustments to foundation_model.py:
  - Replaced dynamic download paths with static path reference