feat: refactor config flow and directory structure

- Create config-provider.yml (reusable workflow, conf→JSON)
- Replace duplicated job env blocks with workflow env + fromJson
- Move provider workflows to workflows/ directory
- Move consumer scripts to .gitea/scripts/
- Move feature-env.conf to .gitea/workflows/
- Add bats-report.sh for TAP→HTML conversion
- Update ci.yml with setup→needs→with pattern
- Add ADR 0006 directory ownership
- Document cross-job config propagation in ci-pipeline-practices.md
- Remove config.yaml, scripts/load-config.sh unused

.gitea/workflows/ci.yml

@@ -6,9 +6,9 @@ on:
 
 jobs:
   load-config:
-    uses: niko/gitea-ci-library/.gitea/workflows/config-provider.yml@feature/pipeline-cleanup
+    uses: niko/gitea-ci-library/workflows/config-provider.yml@feature/pipeline-cleanup
     with:
-      config_path: feature-env.conf
+      config_path: .gitea/workflows/feature-env.conf
 
   feature:
     if: github.ref != 'refs/heads/main'