feat: add videodb media index with Docker stack

- Add videodb PHP/MySQL media collection manager (Blu-ray, DVD, CD)
- Dockerfile: PHP 8.1 + Apache with GD/mysqli/exif extensions
- docker-compose.yml: app on port 6761 + MySQL 8.0 with health checks
- docker-entrypoint.sh: auto-generates config.inc.php from env vars,
  waits for MySQL, initializes DB schema idempotently
- init-db.php: CLI schema installer using app's own prefix_query() logic
- Persistent volumes for DB, cache, and cover images

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

videodb/vendor/pear/ole/.github/workflows/cs.yaml

@@ -0,0 +1,38 @@
+name: Coding Standards
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - master
+
+jobs:
+  coding-standards:
+    name: Coding Standards
+    runs-on: ubuntu-latest
+
+    env:
+      PHP_CS_FIXER_VERSION: v2.17.3
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: 7.4
+          coverage: none
+          tools: php-cs-fixer:${{ env.PHP_CS_FIXER_VERSION }}
+
+      - name: Restore PHP-CS-Fixer cache
+        uses: actions/cache@v2
+        with:
+          path: .php_cs.cache
+          key: "php-cs-fixer"
+          restore-keys: "php-cs-fixer"
+
+      - name: Run PHP-CS-Fixer, version ${{ env.PHP_CS_FIXER_VERSION }}
+        run: |
+          php-cs-fixer fix --diff --diff-format=udiff --dry-run --verbose