Limit public allocation display

[yoshifuminakamura]

Summary

• show only public activity/responsibility labels on public result tables
• keep allocation project IDs out of public table fallback text and tooltips while preserving operator-facing display
• avoid printing manual CI allocation variable values in workflow logs

Tests

• python3 -m py_compile result_server/utils/result_table_rows.py result_server/utils/results_loader.py
• python -m pytest result_server/tests
• git diff --check