Improve source attribution in system download flows so monitoring logs map shared-UID writes back to the app that started them

Redirects app storage operations through Zygisk hooks. Supports separate rules for each device user (users.{userId}) on multi-user devices. Lets you set real-path whitelist rules (allowed_real_paths) and path rewrite rules (path_mappings) per app. Provides runtime logs, file monitor logs, and in-app config management.