Add ESLint and Prettier configuration files, update .gitignore and .npmignore, and enhance CI/CD workflows with testing and release automation

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Report a bug with the Prettier OpenAPI plugin
+title: '[BUG] '
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is with the Prettier OpenAPI plugin.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Create an OpenAPI file with the following content:
+```yaml
+# or JSON
+```
+2. Run Prettier with the plugin: `npx prettier --plugin=prettier-plugin-openapi your-file.yaml`
+3. See the formatting issue
+
+**Expected behavior**
+A clear and concise description of how the OpenAPI file should be formatted.
+
+**OpenAPI file example**
+Please provide a minimal OpenAPI file that demonstrates the issue:
+
+```yaml
+openapi: 3.0.0
+info:
+  title: Test API
+  version: 1.0.0
+# ... rest of your OpenAPI content
+```
+
+**Prettier configuration**
+Please share your `.prettierrc` or Prettier configuration:
+
+```json
+{
+  "plugins": ["prettier-plugin-openapi"],
+  "tabWidth": 2,
+  "printWidth": 80
+}
+```
+
+**Environment (please complete the following information):**
+- OS: [e.g. macOS, Windows, Linux]
+- Node.js version: [e.g. 18.0.0]
+- Prettier version: [e.g. 3.0.0]
+- Plugin version: [e.g. 1.0.0]
+- OpenAPI version: [e.g. 3.0.0, 2.0]
+
+**Additional context**
+Add any other context about the problem here. Include:
+- Whether this affects JSON or YAML files (or both)
+- If it's related to key ordering, formatting, or parsing
+- Any error messages from the console
+
+**Screenshots**
+If applicable, add screenshots showing the before/after formatting to help explain the problem.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for the Prettier OpenAPI plugin
+title: '[FEATURE] '
+labels: enhancement
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is with OpenAPI file formatting. Ex. I'm always frustrated when the plugin doesn't handle [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what formatting behavior you want the plugin to have.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative formatting approaches you've considered.
+
+**Use case**
+Describe the specific OpenAPI formatting use case for this feature. How would it help you or other users format their OpenAPI files?
+
+**OpenAPI specification**
+If this feature relates to a specific OpenAPI specification version or feature, please mention it:
+- OpenAPI 2.0 (Swagger)
+- OpenAPI 3.0.x
+- OpenAPI 3.1.x
+- Specific OpenAPI features (components, security schemes, etc.)
+
+**Example OpenAPI content**
+If applicable, provide an example of the OpenAPI content that would benefit from this feature:
+
+```yaml
+# Your OpenAPI example here
+```
+
+**Current behavior**
+Describe how the plugin currently handles this content.
+
+**Desired behavior**
+Describe how you would like the plugin to format this content.
+
+**Additional context**
+Add any other context or screenshots about the feature request here. Include:
+- Whether this affects JSON or YAML files (or both)
+- If it's related to key ordering, indentation, or other formatting aspects
+- Any specific OpenAPI tooling or workflow this would improve

.github/pull_request_template.md

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+## Description
+
+Brief description of the changes in this PR.
+
+## Type of Change
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Documentation update
+- [ ] Performance improvement
+- [ ] Code refactoring
+
+## Testing
+
+- [ ] New tests added for new functionality
+- [ ] Existing tests updated if needed
+- [ ] Manual testing completed
+- [ ] Tests pass locally
+
+## Related Issues
+
+Fixes #(issue number)
+
+## Additional Notes
+
+Any additional information that reviewers should know.

.github/workflows/ci.yml

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+name: CI/CD Pipeline
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main, develop ]
+  release:
+    types: [ published ]
+
+jobs:
+  test:
+    name: Test Suite
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18, 20, 21]
+        bun-version: [1.0.0, latest]
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Setup Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+        
+    - name: Setup Bun ${{ matrix.bun-version }}
+      uses: oven-sh/setup-bun@v1
+      with:
+        bun-version: ${{ matrix.bun-version }}
+        
+    - name: Install dependencies
+      run: bun install --frozen-lockfile
+      
+    - name: Run linting
+      run: bun run lint
+      
+    - name: Run type checking
+      run: bun run type-check
+      
+    - name: Run tests
+      run: bun run test
+      
+    - name: Run test coverage
+      run: bun run test:coverage
+      
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v3
+      with:
+        file: ./coverage/lcov.info
+        flags: unittests
+        name: codecov-umbrella
+        fail_ci_if_error: false
+
+  build:
+    name: Build Package
+    runs-on: ubuntu-latest
+    needs: test
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20'
+        cache: 'npm'
+        
+    - name: Setup Bun
+      uses: oven-sh/setup-bun@v1
+      with:
+        bun-version: latest
+        
+    - name: Install dependencies
+      run: bun install --frozen-lockfile
+      
+    - name: Build package
+      run: bun run build
+      
+    - name: Verify build output
+      run: |
+        ls -la dist/
+        node -e "console.log('Build verification:', require('./dist/index.js'))"
+        
+    - name: Upload build artifacts
+      uses: actions/upload-artifact@v4
+      with:
+        name: dist-files
+        path: dist/
+        retention-days: 30
+
+  publish:
+    name: Publish to NPM
+    runs-on: ubuntu-latest
+    needs: [test, build]
+    if: github.event_name == 'release' && github.event.action == 'published'
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20'
+        registry-url: 'https://registry.npmjs.org'
+        
+    - name: Setup Bun
+      uses: oven-sh/setup-bun@v1
+      with:
+        bun-version: latest
+        
+    - name: Install dependencies
+      run: bun install --frozen-lockfile
+      
+    - name: Build package
+      run: bun run build
+      
+    - name: Publish to NPM
+      run: bun run publish:package
+      env:
+        NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        
+    - name: Create GitHub Release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        tag_name: ${{ github.event.release.tag_name }}
+        release_name: ${{ github.event.release.name }}
+        body: ${{ github.event.release.body }}
+        draft: false
+        prerelease: false
+
+  security:
+    name: Security Audit
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20'
+        
+    - name: Setup Bun
+      uses: oven-sh/setup-bun@v1
+      with:
+        bun-version: latest
+        
+    - name: Install dependencies
+      run: bun install --frozen-lockfile
+      
+    - name: Run security audit
+      run: bun audit
+      
+    - name: Run Snyk security scan
+      uses: snyk/actions/node@master
+      env:
+        SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
+      with:
+        args: --severity-threshold=high

.github/workflows/release.yml

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+name: Release
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  release:
+    name: Publish Release
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+        token: ${{ secrets.GITHUB_TOKEN }}
+        
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '22'
+        cache: 'npm'
+        
+    - name: Setup Bun
+      uses: oven-sh/setup-bun@v1
+      with:
+        bun-version: latest
+        
+    - name: Install dependencies
+      run: bun install --frozen-lockfile
+      
+    - name: Run tests
+      run: bun run test
+      
+    - name: Run linting
+      run: bun run lint
+      
+    - name: Build package
+      run: bun run build
+      
+    - name: Get current version
+      id: current-version
+      run: |
+        CURRENT_VERSION=$(node -p "require('./package.json').version")
+        echo "version=$CURRENT_VERSION" >> $GITHUB_OUTPUT
+        echo "tag=v$CURRENT_VERSION" >> $GITHUB_OUTPUT
+        
+    - name: Check if version exists on NPM
+      id: version-check
+      run: |
+        VERSION=${{ steps.current-version.outputs.version }}
+        if npm view prettier-plugin-openapi@$VERSION version >/dev/null 2>&1; then
+          echo "exists=true" >> $GITHUB_OUTPUT
+          echo "Version $VERSION already exists on NPM"
+        else
+          echo "exists=false" >> $GITHUB_OUTPUT
+          echo "Version $VERSION does not exist on NPM"
+        fi
+        
+    - name: Bump patch version if needed
+      id: bump-version
+      if: steps.version-check.outputs.exists == 'true'
+      run: |
+        npm version patch --no-git-tag-version
+        NEW_VERSION=$(node -p "require('./package.json').version")
+        echo "version=$NEW_VERSION" >> $GITHUB_OUTPUT
+        echo "tag=v$NEW_VERSION" >> $GITHUB_OUTPUT
+        echo "bumped=true" >> $GITHUB_OUTPUT
+        
+    - name: Set final version
+      id: final-version
+      run: |
+        if [ "${{ steps.bump-version.outputs.bumped }}" = "true" ]; then
+          echo "version=${{ steps.bump-version.outputs.version }}" >> $GITHUB_OUTPUT
+          echo "tag=${{ steps.bump-version.outputs.tag }}" >> $GITHUB_OUTPUT
+        else
+          echo "version=${{ steps.current-version.outputs.version }}" >> $GITHUB_OUTPUT
+          echo "tag=${{ steps.current-version.outputs.tag }}" >> $GITHUB_OUTPUT
+        fi
+        
+    - name: Generate release message
+      id: release-message
+      run: |
+        if [ "${{ steps.bump-version.outputs.bumped }}" = "true" ]; then
+          COMMIT_MSG=$(git log -1 --pretty=format:"%s")
+          echo "message=Automated patch release: $COMMIT_MSG" >> $GITHUB_OUTPUT
+        else
+          COMMIT_MSG=$(git log -1 --pretty=format:"%s")
+          echo "message=Release: $COMMIT_MSG" >> $GITHUB_OUTPUT
+        fi
+        
+    - name: Commit version bump if needed
+      if: steps.bump-version.outputs.bumped == 'true'
+      run: |
+        git config --local user.email "action@github.com"
+        git config --local user.name "GitHub Action"
+        git add package.json
+        git commit -m "chore: bump version to ${{ steps.bump-version.outputs.version }}"
+        
+    - name: Create tag
+      run: |
+        git tag ${{ steps.final-version.outputs.tag }}
+        
+    - name: Push changes and tag
+      run: |
+        git push origin main
+        git push origin ${{ steps.final-version.outputs.tag }}
+        
+    - name: Publish to NPM
+      run: npm publish
+      env:
+        NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        
+    - name: Create Release
+      uses: elgohr/Github-Release-Action@v5
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        tag_name: ${{ steps.final-version.outputs.tag }}
+        name: Release ${{ steps.final-version.outputs.tag }}
+        body: |
+          ## Release ${{ steps.final-version.outputs.version }}
+          
+          ${{ steps.release-message.outputs.message }}
+          
+          ## Installation
+          
+          ```bash
+          npm install prettier-plugin-openapi@${{ steps.final-version.outputs.version }}
+          ```
+          
+          ## Usage
+          
+          Add to your `.prettierrc`:
+          
+          ```json
+          {
+            "plugins": ["prettier-plugin-openapi"]
+          }
+          ```
+        draft: false
+        prerelease: false