iOS App Intents

Docs: https://developer.apple.com/documentation/appintents.

• Name intents with verbs (open, find, compose, continue). Do not mirror the whole navigation tree as intents.
• Add AppEntity and EntityQuery types only where the system needs to route or disambiguate.
• Put the system-facing layer in a dedicated intents target or module, with one predictable handoff into the main scene.
• Treat App Intents as system integration infrastructure, not only a Shortcuts feature.