vladopajic/go-test-coverage@v2 (v2.18.5+) switched composite-action
inputs from CLI args to env-var mapping, which Gitea act_runner does
not expand reliably. The literal string `${{ inputs.config }}` was
passed to the binary, breaking 'Check coverage' steps.
Replace the action with a direct go install + binary invocation
(matching Frostmoln pattern) and use the tool's --github-action-output
to drop manual go tool cover -func calculations.
Add go-test-coverage for coverage threshold enforcement. Coverage data
is uploaded as artifacts on main branch and compared against baseline
in PRs using shell script that gracefully handles first run without
baseline. PR comments show coverage percentage.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>