chore: add DISABLE_FILESYSTEM_ENCRYPTION option

- Enhanced comments in docker-compose files to clarify the purpose of environment variables, including optional settings for UID, GID, and filesystem encryption.
- Introduced DISABLE_FILESYSTEM_ENCRYPTION variable to allow users to disable file encryption, making the ENCRYPTION_KEY optional.
- Updated documentation in quick-start guide to reflect changes in environment variable usage and security warnings.

Dockerfile

@@ -133,6 +133,7 @@ set -e
 echo "Starting Palmr Application..."
 echo "Storage Mode: \${ENABLE_S3:-false}"
 echo "Secure Site: \${SECURE_SITE:-false}"
+echo "Encryption: \${DISABLE_FILESYSTEM_ENCRYPTION:-false}"
 echo "Database: SQLite"
 
 # Set global environment variables