Reads a bundled JSON asset by file name. Android serves these from assets/; non-Android targets have no bundled assets and return null, which callers treat as "nothing to seed".
assets/
null
Decodes bundled asset name to T using the shared tolerant json, or null if the asset is absent.
Opens name (e.g. "device_links.json"), or returns null if the asset is absent.
"device_links.json"