fix: resolve MCP registry publish race condition

.github/workflows/publish.yml

@@ -1,4 +1,4 @@
-name: Publish to PyPI
+name: Publish to PyPI and MCP Registry
 
 on:
   release:
@@ -72,3 +72,44 @@ jobs:
 
       - name: Publish to PyPI
         uses: pypa/gh-action-pypi-publish@release/v1
+
+  publish-mcp-registry:
+    name: Publish server.json to MCP Registry
+    needs: publish
+    runs-on: ubuntu-24.04
+    permissions:
+      contents: read
+      id-token: write  # Required for OIDC authentication with MCP Registry
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v7
+
+      - name: Extract version from release tag
+        id: version
+        run: |
+          TAG="${{ github.event.release.tag_name }}"
+          if [ -z "$TAG" ]; then
+            TAG="$(git describe --tags --abbrev=0)"
+          fi
+          VERSION="${TAG#v}"
+          echo "tag=$TAG" >> "$GITHUB_OUTPUT"
+          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
+
+      - name: Set version in server.json
+        run: |
+          VERSION="${{ steps.version.outputs.version }}"
+          echo "Setting server.json version to $VERSION"
+          jq --arg v "$VERSION" '.version = $v | .packages[0].version = $v' server.json > server.json.tmp
+          mv server.json.tmp server.json
+          echo "=== Updated server.json ==="
+          cat server.json
+
+      - name: Install mcp-publisher
+        run: |
+          curl -L "https://github.com/modelcontextprotocol/registry/releases/latest/download/mcp-publisher_$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/').tar.gz" | tar xz mcp-publisher
+
+      - name: Authenticate to MCP Registry (OIDC)
+        run: ./mcp-publisher login github-oidc
+
+      - name: Publish server to MCP Registry
+        run: ./mcp-publisher publish