pull_request_template.md

What this changes

Ran the tool against a real extraction and confirmed the row counts, not just that it imports.
Ran python admin/scripts/check_artifact_output.py <report folder> on that report and fixed or documented every finding. An empty or constant column is often a real result (no group chats, coarse location denied); the fix for those is a sentence in the artifact's notes naming the column and saying it was empty or uniform, which is also what stops the checker reporting it.
Checked it against a second app data directory where the platform provides one (a second user, account, or container). --compare <multi-container report> reads the scaling for you: it should be exactly double.
notes, description and sample_data say only what the data shows, and the numbers were re-derived from the finished run.