refactor: replace inline publish job with thin caller

Workflow logic now lives in novoyuuparosk-auto-wiki/publish-songs.yml
(reusable, workflow_call). Gains incremental publishing: only changed
song files are republished instead of --all on every push.

.gitea/workflows/publish.yml

@@ -10,31 +10,10 @@ on:
 
 jobs:
   publish:
-    runs-on: ubuntu-latest
-    container:
-      image: pi5-16.local:3005/mikkeli/novoyuuparosk-wiki-runner:v0
-
-    steps:
-      - name: Checkout ncmr-songs
-        env:
-          FAPAT: ${{ secrets.FAPAT }}
-          URL_TO_GITEA: ${{ vars.URL_TO_GITEA }}
-        run: |
-          git clone "http://mikkeli:${FAPAT}@${URL_TO_GITEA#http://}/mikkeli/ncmr-songs" ncmr-songs
-          git -C ncmr-songs checkout ${{ github.sha }}
-
-      - name: Checkout auto-wiki (renderer)
-        env:
-          FAPAT: ${{ secrets.FAPAT }}
-          URL_TO_GITEA: ${{ vars.URL_TO_GITEA }}
-        run: git clone "http://mikkeli:${FAPAT}@${URL_TO_GITEA#http://}/mikkeli/novoyuuparosk-auto-wiki" auto-wiki
-
-      - name: Publish
-        env:
-          WIKI_API_URL: ${{ vars.WIKI_API_URL }}
-          WIKI_BASE_URL: ${{ vars.WIKI_BASE_URL }}
-          WIKI_BOT_USER: ${{ secrets.WIKI_BOT_USER }}
-          WIKI_BOT_PASSWORD: ${{ secrets.WIKI_BOT_PASSWORD }}
+    uses: mikkeli/novoyuuparosk-auto-wiki/.gitea/workflows/publish-songs.yml@master
+    with:
       SOURCE_REF: ${{ github.sha }}
-          GITEA_REPO_URL: ${{ vars.URL_TO_GITEA }}/mikkeli/ncmr-songs
-        run: python auto-wiki/pipelines/songs/publish.py --source-dir ncmr-songs --all
+      # Empty on workflow_dispatch — the reusable workflow treats that as
+      # "publish everything", same as a first push.
+      SOURCE_BASE_REF: ${{ github.event.before }}
+    secrets: inherit