ci: replace forgejo-release action with direct API call to attach assets

forgejo-release@v1 calls 'tea release create' which errors with
'There already is a release for this tag' when the release is
pre-created (which release.yml needs because the trigger is
'release.published').

Workaround: do the upload ourselves via POST /api/v1/repos/.../releases/{id}/assets
with binary body. This is what forgejo-release ends up doing internally
after it successfully creates the release.

.gitea/workflows/release.yml

@@ -127,13 +127,41 @@ jobs:
           if-no-files-found: error
           retention-days: 90
 
-      - name: Attach to release
-        uses: https://code.forgejo.org/actions/forgejo-release@v1
+      # Ассеты прикрепляются через прямой Gitea API-вызов: forgejo-release
+      # action всегда пытается tea release create с теми же tag+title,
+      # что уже опубликованный релиз, и валится с
+      # "There already is a release for this tag".
+      #
+      # Тонкость: redirect-тело от PUT на /releases/{id}/assets для
+      # бинарной загрузки обычно пустое. Используем POST (по текущему
+      # контракту Gitea API для ассетов).
+      - name: Attach fatjars to release via API
         if: startsWith(github.ref, 'refs/tags/')
-        with:
-          direction: upload
-          url: ${{ github.server_url }}
-          repo: ${{ github.repository }}
-          token: ${{ secrets.RELEASE_TOKEN }}
-          tag: ${{ github.ref_name }}
-          release-dir: standalone/build/libs
+        shell: bash
+        env:
+          RELEASE_TOKEN: ${{ secrets.RELEASE_TOKEN }}
+        run: |
+          TAG="$GITHUB_REF_NAME"
+          # strip leading "v" if present (artifact filename doesn't include it)
+          VERSION="${TAG#v}"
+          REL_ID=$(curl -sS -H "Authorization: token $RELEASE_TOKEN" \
+            "$GITHUB_SERVER_URL/api/v1/repos/$GITHUB_REPOSITORY/releases/tags/$TAG" \
+            | jq -r .id)
+          echo "release id: $REL_ID  tag: $TAG  version: $VERSION"
+          for f in \
+            "standalone/build/libs/standalone-${VERSION}-all.jar" \
+            "agentik-cli/build/libs/agentik-cli-${VERSION}-all.jar" \
+            "agentik-tui/build/libs/agentik-tui-${VERSION}-all.jar"
+          do
+            if [ -f "$f" ]; then
+              fname=$(basename "$f")
+              curl -sS -X POST \
+                -H "Authorization: token $RELEASE_TOKEN" \
+                -H "Content-Type: application/octet-stream" \
+                --data-binary "@$f" \
+                "$GITHUB_SERVER_URL/api/v1/repos/$GITHUB_REPOSITORY/releases/$REL_ID/assets?name=$fname" \
+                -w "  upload: $fname -> HTTP %{http_code}\n"
+            else
+              echo "  skip missing: $f"
+            fi
+          done