- Add s3_storage.go service using AWS SDK v2 - Support custom S3-compatible endpoints (Civo) - Implement pre-signed URL generation for uploads/downloads - Add storage_handler.go with REST endpoints - Register protected storage routes in router - Graceful degradation when S3 not configured
- Update database.go to use DB_SSLMODE environment variable - Default to sslmode=require for production security - Update .env.example with SSL and S3 configuration examples