Set explicit coverage threshold

[benni-rogge]

Summary

covered:validate defaults to requiring 100% coverage, but the current main baseline is below that, so the Test Coverage / validate job is failing on main and on unrelated PRs.

Recent evidence:

• main (e7007f6): 45 files checked; 755/882 lines executed; 85.6% covered. (run)
• PR Strip and re-author forwarding headers in Falcon::Middleware::Proxy #351 (6d54a53): 45 files checked; 761/888 lines executed; 85.7% covered. (run)

I also checked the last five main Test Coverage / validate runs; all failed at the same baseline: 45 files checked; 755/882 lines executed; 85.6% covered.

This sets an explicit 85% validation threshold so the workflow matches the current project baseline and can catch future regressions without blocking unrelated changes.

Validation

The push workflow on my fork passed with this change, including Test Coverage / validate:

• https://github.com/benni-rogge/falcon/actions/runs/26921498085/job/79423032546

That job reported the current baseline, 45 files checked; 755/882 lines executed; 85.6% covered., and passed with the explicit --minimum 0.85 threshold.

I also validated the exact intended follow-up state for #351 by pushing a temporary fork branch that applies this PR first and then #351. That combined branch passed all workflows, including Test Coverage / validate:

• https://github.com/benni-rogge/falcon/actions/runs/26925790018/job/79435701444

That combined validation job reported: 45 files checked; 761/888 lines executed; 85.7% covered.

Notes

This is intended as a CI baseline fix. Raising coverage back to 100% can happen incrementally in follow-up test-only PRs.

[benni-rogge]

Note: the workflow runs for this fork PR are currently waiting on maintainer approval (action_required). Once approved, the Test Coverage / validate job should use the explicit 85% threshold from this change.

[benni-rogge]

Hi @ioquatix, could you please approve/run the workflows for this fork PR when you have a chance? This baseline CI fix is what unblocks #351 while keeping that PR focused.

Validation links:

• Set explicit coverage threshold #352's exact commit passed the fork workflow, including Test Coverage / validate: https://github.com/benni-rogge/falcon/actions/runs/26921498085/job/79423032546
• a combined Set explicit coverage threshold #352 + Strip and re-author forwarding headers in Falcon::Middleware::Proxy #351 branch also passed Test Coverage / validate: https://github.com/benni-rogge/falcon/actions/runs/26925790018/job/79435701444