fix: resolve lint errors, add PHPStan baseline for max level, remove dev-only volume mounts

- Fix unused imports and import ordering flagged by pint
- Add PHPStan baseline to enable level max without breaking CI
- Remove dev-only volume mounts (../query, ../async, ../mongo) from
  docker-compose.yml that break CI when those directories don't exist

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: abnegate

docker-compose.yml

@@ -18,9 +18,6 @@ services:
       - ./dev/xdebug.ini:/usr/local/etc/php/conf.d/xdebug.ini
       - /var/run/docker.sock:/var/run/docker.sock
       - ./docker-compose.yml:/usr/src/code/docker-compose.yml
-      - ../query/src:/usr/src/code/vendor/utopia-php/query/src
-      - ../async/src:/usr/src/code/vendor/utopia-php/async/src
-      - ../mongo/src:/usr/src/code/vendor/utopia-php/mongo/src
     environment:
       PHP_IDE_CONFIG: serverName=tests
     depends_on: