fix: resolve MCP registry publish race condition by merging into publish workflow (#21)

The MCP registry publish workflow (publish-mcp-registry.yml) ran
concurrently with the PyPI publish workflow on release events. The
MCP Registry validates that the PyPI package exists before accepting
the server.json, but due to the race condition it got a 404.

Fix by merging the MCP registry publishing as a dependent job
(needs: publish) into publish.yml, ensuring PyPI upload completes
before the MCP Registry validation runs. Removed the standalone
publish-mcp-registry.yml to avoid duplicate triggers.

Author: shenxianpeng

.github/workflows/publish-mcp-registry.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