fix#13529
#### PR Dependency Tree
* **PR #14481** 👈
This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)
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## Summary by CodeRabbit
* **New Features**
* Mobile blob caching with file-backed storage for faster loads and
reduced network usage
* Blob decoding with lazy refresh on token-read failures for improved
reliability
* Full-text search/indexing exposed to mobile apps
* Document sync APIs and peer clock management for robust cross-device
sync
* **Tests**
* Added unit tests covering payload decoding, cache safety, and
concurrency
* **Dependencies**
* Added an LRU cache dependency and a new mobile-shared package for
shared mobile logic
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