Add automatic beta release on master push

- Trigger release workflow on pushes to master branch and tags
- Auto-generate beta versions with timestamp for master pushes
- Publish tagged releases as 'latest' and master releases as 'beta'
- Create GitHub releases with appropriate prerelease status
- Maintain existing tag-based release functionality

This enables automatic beta releases when PRs are merged while preserving
manual stable releases via git tags.

Author: omar-dulaimi

.github/workflows/release.yml

@@ -2,6 +2,8 @@ name: Release
 
 on:
   push:
+    branches:
+      - master
     tags:
       - 'v*'
 
@@ -32,13 +34,35 @@ jobs:
     - name: Run tests
       run: npm run test:ci
 
+    - name: Determine release type and version
+      id: release-info
+      run: |
+        if [[ $GITHUB_REF == refs/tags/* ]]; then
+          # Tagged release
+          echo "release_type=tagged" >> $GITHUB_OUTPUT
+          echo "version=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
+          echo "npm_tag=latest" >> $GITHUB_OUTPUT
+          echo "prerelease=false" >> $GITHUB_OUTPUT
+        else
+          # Auto release from master - use beta
+          PACKAGE_VERSION=$(node -p "require('./package.json').version")
+          BETA_VERSION="${PACKAGE_VERSION}-beta.$(date +%Y%m%d%H%M%S)"
+          echo "release_type=auto" >> $GITHUB_OUTPUT
+          echo "version=v${BETA_VERSION}" >> $GITHUB_OUTPUT
+          echo "npm_tag=beta" >> $GITHUB_OUTPUT
+          echo "prerelease=true" >> $GITHUB_OUTPUT
+          
+          # Update package.json version for beta
+          npm version $BETA_VERSION --no-git-tag-version
+        fi
+        
     - name: Build package
       run: ./package.sh
 
     - name: Publish to npm
       run: |
         cd package
-        npm publish
+        npm publish --tag ${{ steps.release-info.outputs.npm_tag }}
       env:
         NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
 
@@ -47,7 +71,12 @@ jobs:
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
-        tag_name: ${{ github.ref }}
-        release_name: Release ${{ github.ref }}
+        tag_name: ${{ steps.release-info.outputs.version }}
+        release_name: Release ${{ steps.release-info.outputs.version }}
+        body: |
+          ${{ steps.release-info.outputs.release_type == 'auto' && '🧪 **Beta Release** - Automatically generated from latest master branch' || 'Stable release' }}
+          
+          ## Changes
+          See the [full changelog](https://github.com/omar-dulaimi/prisma-class-validator-generator/compare/v5.0.0...${{ steps.release-info.outputs.version }}) for details.
         draft: false
-        prerelease: false
+        prerelease: ${{ steps.release-info.outputs.prerelease == 'true' }}