refactor: use external registry url and remove legacy scripts

.github/workflows/update-registry.yml

@@ -1,43 +0,0 @@
-name: Update Plugin Registry
-
-on:
-  schedule:
-    - cron: '0 0 * * *' # Run daily at midnight
-  workflow_dispatch: # Allow manual trigger
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    
-    permissions:
-      contents: write # Needed to push changes
-
-    steps:
-    - name: Checkout Repository
-      uses: actions/checkout@v4
-
-    - name: Setup PHP
-      uses: shivammathur/setup-php@v2
-      with:
-        php-version: '8.2'
-
-    - name: Generate Registry
-      run: php scripts/generate_registry.php
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-    - name: Check for Changes
-      id: check_changes
-      run: |
-        if [[ -n $(git status -s public/plugins.json) ]]; then
-          echo "has_changes=true" >> $GITHUB_OUTPUT
-        fi
-
-    - name: Commit and Push
-      if: steps.check_changes.outputs.has_changes == 'true'
-      run: |
-        git config --global user.name 'github-actions[bot]'
-        git config --global user.email 'github-actions[bot]@users.noreply.github.com'
-        git add public/plugins.json
-        git commit -m "chore(registry): update plugins.json"
-        git push