Skip running test_run_experiments.py tests in CI. Reorganized environment files by splitting environment.yml into specific requirement files (e.g., full, streaming, stimpres, docsbuild). Updated installation instructions to align with the new environment structure and clarified differences for macOS arm64.

Skip running test_run_experiments.py tests in CI. Reorganized environment files by splitting environment.yml into specific requirement files (e.g., full, streaming, stimpres, docsbuild). Updated installation instructions to align with the new environment structure and clarified differences for macOS arm64. #669