integration with the iOS CoreSpotlight framework for search

[alihamuh]

A user suggested integration with the iOS CoreSpotlight framework. This would allow the iOS system-wide search (Spotlight) to index notes so they appear when a user swipes down on their home screen and types a query.

The Privacy Conflict: For Spotlight to work, the app must "hand over" data (titles or content) to the iOS indexing service. Once that data is in the system index, it is no longer protected solely by the Notesnook encryption "vault." It is stored in a searchable database managed by Apple.

The Zero-Knowledge Breach: True zero-knowledge means the system (and the developer) knows nothing about the data. By indexing even just the titles, you are creating a "metadata leak" where the operating system has a record of your note titles.

We can add this as an optional feature on our IOS app.