feat: implement quality-gate and publish-artifact pipelines

- Rename build-feature.yml → quality-gate.yml (merge-portti)
- Create build_publish-artifact.yml: check → qg → build → push → tag
- Add minimal Dockerfile for dogfood container build
- Simplify quality-gate.yml cucumber job (remove prepare step, TOOL_OK)
- Standardize test scripts in package.json for Docker-based local + CI runs
- Update ci.yml: main branch uses build_publish-artifact.yml
- Update docs/workflows.md: feature section rewritten with provider model
- Add .gitignore entries for coverage/ and reports/

.gitea/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
   main:
     if: github.ref == 'refs/heads/main'
     needs: [load-config]
-    uses: niko/gitea-ci-library/.gitea/workflows/quality-gate.yml@main
+    uses: niko/gitea-ci-library/.gitea/workflows/build_publish-artifact.yml@feture/docker-kyky
     secrets: inherit
     with:
       env_json: ${{ needs.load-config.outputs.env_json }}