refactor: split ci.yml into branch-specific orchestrators, extract version check

- ci.yml: pure dispatch (Feature → ci-feature, Main → ci-main), 18 lines
- ci-feature.yml (new):  load-config → quality-gate
- ci-main.yml (new):     load-config → check-version → quality-gate → docker-build-push
- check-version.yml (new): provider workflow for artifact existence check and version calculation
- docker-build-push.yml (renamed from build_publish-artifact.yml):
  - removed check job, quality-gate block, gatekeeper logic, build-context artifact
  - version passed as input, simplified needs chain (build → push → tag-commit)
  - fixed consumer→provider checkout pattern (.ci/scripts/)

.gitea/workflows/ci.yml

@@ -5,30 +5,14 @@ on:
   workflow_dispatch:
 
 jobs:
-  load-config:
-    name: Load gitea-env.conf to pipeline env
-    uses: niko/gitea-ci-library/.gitea/workflows/config-provider.yml@main
-    with:
-      config_path: .gitea/workflows/gitea-env.conf
-
-  # feature:
-  #   name: Quality Gate
-  #   if: github.ref != 'refs/heads/main'
-  #   needs: [load-config]
-  #   uses: niko/gitea-ci-library/.gitea/workflows/quality-gate.yml@main
-  #   secrets: inherit
-  #   with:
-  #     env_json: ${{ needs.load-config.outputs.env_json }}
-  #     bats-image: bats/bats:latest
-  #     cucumber-node-image: node:22
+  feature:
+    name: Feature
+    if: github.ref != 'refs/heads/main'
+    uses: niko/gitea-ci-library/.gitea/workflows/ci-feature.yml@feature/docker-kuntoon
+    secrets: inherit
 
   main:
-    name: Build & Push Artifact
-    # if: github.ref == 'refs/heads/main'  # FIXME: väliaikainen — ajetaan tässä haarassa
-    needs: [load-config]
-    uses: niko/gitea-ci-library/.gitea/workflows/build_publish-artifact.yml@feature/docker-kuntoon
+    name: Main
+    if: github.ref == 'refs/heads/main'
+    uses: niko/gitea-ci-library/.gitea/workflows/ci-main.yml@feature/docker-kuntoon
     secrets: inherit
-    with:
-      env_json: ${{ needs.load-config.outputs.env_json }}
-      bats-image: bats/bats:latest
-      cucumber-node-image: node:22