#32 Extract test suite scoring helpers

[iray-tno]

Summary

• move suite scoring/reporting dataclasses and helpers into src/commands/test_scoring.py
• keep src/commands/test_command.py focused on Click routing, compilation, and process execution
• preserve existing CLI behavior and output

Closes #32

Tests

• python -m py_compile src/commands/test_command.py src/commands/test_scoring.py
• uv run pytest tests/test_test_command.py -q
• uv run pytest -q