feat: Complete PyPI Query MCP Server Implementation (#3)

Merge pull request implementing complete PyPI query MCP server with comprehensive features and CI/CD pipeline.

.github/workflows/release.yml

@@ -0,0 +1,102 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    uses: ./.github/workflows/test.yml
+
+  build:
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: "3.11"
+    
+    - name: Install uv
+      run: |
+        python -m pip install --upgrade pip
+        pip install uv
+    
+    - name: Install dependencies
+      run: |
+        uvx poetry install
+    
+    - name: Build package
+      run: |
+        uvx poetry build
+    
+    - name: Check package
+      run: |
+        uvx poetry run twine check dist/*
+    
+    - name: Upload build artifacts
+      uses: actions/upload-artifact@v4
+      with:
+        name: dist
+        path: dist/
+
+  publish:
+    needs: build
+    runs-on: ubuntu-latest
+    environment: release
+    permissions:
+      id-token: write  # IMPORTANT: this permission is mandatory for trusted publishing
+    steps:
+    - name: Download build artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: dist
+        path: dist/
+    
+    - name: Publish to PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1
+      with:
+        skip-existing: true
+
+  github-release:
+    needs: publish
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    
+    - name: Generate changelog
+      id: changelog
+      run: |
+        # Extract version from tag
+        VERSION=${GITHUB_REF#refs/tags/v}
+        echo "version=$VERSION" >> $GITHUB_OUTPUT
+        
+        # Generate changelog (basic implementation)
+        echo "## Changes in v$VERSION" > CHANGELOG.md
+        echo "" >> CHANGELOG.md
+        git log --pretty=format:"- %s" $(git describe --tags --abbrev=0 HEAD^)..HEAD >> CHANGELOG.md || echo "- Initial release" >> CHANGELOG.md
+    
+    - name: Create GitHub Release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        tag_name: ${{ github.ref }}
+        release_name: Release v${{ steps.changelog.outputs.version }}
+        body_path: CHANGELOG.md
+        draft: false
+        prerelease: false