Shipping App Intents: The Siri Integration RN Apps Need Now

With iOS 27's conversational Siri, App Intents went from "nice to have" to "your app's Siri surface":

The three intents worth shipping first:

1. Query intent — "Hey Siri, what's MU trading at?" → reads your quote
2. Action intent — "Add AAPL to my watchlist" → performs it
3. Open intent — "Show me the Micron chart" → deep-links to the right screen

RN implementation: Expo SDK 58 exposes 'expo-app-intents' / App Intents modules. The lift is mostly in defining the intent schema; the UI is your existing navigation.

Stock Picks ships all three — the practice-trade intent is the sleeper hit ("rehearse that trade" → opens a paper ticket on the last-discussed ticker).