ci: fix mcp-publisher download URL

- Change from wrong repo (mcp-publisher) to correct repo (registry)
- Use proper tar.gz format with versioned release URL
- Add tar extraction step
- Update manual install instructions with correct URL

.github/workflows/release.yml

@@ -169,14 +169,17 @@ jobs:
 
       - name: Install mcp-publisher
         run: |
-          # Download mcp-publisher with error handling
-          curl -fsSL -o mcp-publisher https://github.com/modelcontextprotocol/mcp-publisher/releases/latest/download/mcp-publisher-linux-amd64 || {
+          # Download mcp-publisher from correct registry repository
+          # URL format: https://github.com/modelcontextprotocol/registry/releases/download/v1.0.0/mcp-publisher_1.0.0_linux_amd64.tar.gz
+          curl -fsSL -o mcp-publisher.tar.gz "https://github.com/modelcontextprotocol/registry/releases/download/v1.0.0/mcp-publisher_1.0.0_linux_amd64.tar.gz" || {
             echo "⚠️  Failed to download mcp-publisher - MCP publish will be skipped"
-            echo "Install manually: https://github.com/modelcontextprotocol/mcp-publisher"
+            echo "Install manually: https://github.com/modelcontextprotocol/registry/releases"
             exit 0
           }
+          tar -xzf mcp-publisher.tar.gz mcp-publisher
           chmod +x mcp-publisher
           sudo mv mcp-publisher /usr/local/bin/
+          rm mcp-publisher.tar.gz
 
       - name: Publish to MCP Registry
         run: |
@@ -184,7 +187,8 @@ jobs:
           if ! command -v mcp-publisher &> /dev/null; then
             echo "⚠️  mcp-publisher not found - skipping MCP publish"
             echo "To publish manually:"
-            echo "  1. Install mcp-publisher: https://github.com/modelcontextprotocol/mcp-publisher"
+            echo "  1. Install mcp-publisher:"
+            echo "     curl -L \"https://github.com/modelcontextprotocol/registry/releases/download/v1.0.0/mcp-publisher_1.0.0_$(uname -s | tr '[:upper:]' '[:lower:]')_amd64.tar.gz\" | tar xz mcp-publisher"
             echo "  2. Run: mcp-publisher login github"
             echo "  3. Run: mcp-publisher publish"
             exit 0