Epic: richer media detail page (recommendations, person pages, in-app sharing)

[miicolas]

Problem Statement

The media detail page is informative but a dead end: the cast is not tappable, there are no related-title suggestions, and the only "sharing" is an unused title-only share. Users can't keep exploring or tell a friend about a title from inside the app.

Solution

Turn the media detail page into a hub for rebounding: suggest related titles, let users explore an actor/crew member's filmography, and let users recommend a title to people they follow — without leaving the app.

Scope — one sequenced plan, three independently shippable features

Delivered in order of increasing cost; each can ship on its own:

1. "You may also like" section — feat(mobile): "You may also like" section on the media detail page #31 (cheapest; backend handler already exists, just expose + render).
2. Person detail screen — feat(mobile): person detail screen (actor/crew filmography) #32 (largest TMDB/UI piece; new endpoint + screen, cast becomes tappable).
3. In-app media recommendations — feat: in-app media recommendations (recommend a movie to a friend) #33 (heaviest; new DB table + API module + send sheet + inbox + push).

Key decisions (settled)

• Related titles use TMDB recommendations (not "similar"); movie/TV only, not episodes.
• Person page shows two sections — Acting + Directing/Crew; routed by mirroring the existing media-detail multi-stack pattern.
• "Recommend to a friend" is in-app (not the OS share sheet): recipients = people you follow, multi-select, optional message, entered via a header button, received in a dedicated inbox with push + deep link.

Constraints

• iOS-only, Expo SDK 56, SwiftUI-first (@expo/ui/swift-ui); TMDB strictly server-side. Follow the tmdb, expo-ui-swiftui, naming, and haptics skills.
• No automated test framework is wired up; verification is manual (iOS simulator) plus bunx tsc --noEmit and bun run lint. See each child issue for its seams.

Further Notes

Consider a whats-new announcement as each feature ships.