[fs] Accessing image assets returns APK zip content instead of file

When developing an Android project, accessing file-based resources like HTML or JSON works correctly. However, when attempting to load image resources (e.g. .jpg, .png) from the same location, the returned content is a ZIP archive which, when extracted, contains the unpacked APK structure (e.g., classes.dex, resources.arsc, etc.), instead of the expected image content.

[mini example](https://github.com/InkSha/read-image-but-return-zip)