[fnayou]

Summary

python -m coverage run -m unittest discover -v
  └── coverage report --show-missing
      ├── local per-file branch report
      └── GitHub Actions job summary

Adds pinned development coverage tooling, local instructions, and a per-file CI summary. The baseline is module-level; #31's issue comment records candidate core-policy gaps. No threshold set before #32 review.

Closes #31.

Evidence

• Before: 133 tests ran without line or branch coverage reporting.
• After: 133 tests pass; ffmpegfyMe.py baseline: 604 statements, 91 missed, 234 branches, 29 partial branches, 84% combined coverage. This is not core-policy-only coverage.

Merge Danger

Door: Two-way

Blast Radius: CI

Changes affect Python test reporting and contributor instructions.