[Watch] 5 - Mirror weather and radar

[KacperKozak]

What to build

Deliver native iOS weather to the wrist and port forecast and radar behavior, retaining Android's visibility-scoped fetching and offline handling.

Source: docs/watchos.md and the approved watchOS parity plan. Execution: AFK, with integrated hardware validation in slice 8.

Likely files

• modules/vescape-core/ios/weather/WeatherCoordinator.swift — existing native iOS integration or test starting point.
• modules/vescape-core/android/src/main/java/expo/modules/vescapecore/watch/WatchWeatherPusher.kt — existing Android phone-side parity peer.
• watch/wearos/src/main/java/app/vescape/wear/WeatherScreen.kt — existing Wear OS behavior or wire-contract peer.
• watch/wearos/src/main/java/app/vescape/wear/RadarScreen.kt — existing Wear OS behavior or wire-contract peer.
• watch/wearos/src/main/java/app/vescape/wear/WatchRadar.kt — existing Wear OS behavior or wire-contract peer.
• watch/wearos/src/main/java/app/vescape/wear/WatchWeather.kt — existing Wear OS behavior or wire-contract peer.

Implementation hints

Read current Android code, not historical alert-forwarding docs. Keep native phone truth and actions in vescape-core; do not make live wrist behavior depend on JS. Add bidirectional @parity links for equivalent contracts/logic and document verified platform differences in docs/watchos.md. New durable watch source belongs under watch/watchos/, not generated ios/. The local planning document will be included in the draft watchOS feature PR; this issue includes its relevant requirements independently.

Acceptance criteria

• Weather snapshots and forecast appear on the correct pages and reflect current phone state.
• Radar fetches only when its active page requires it; hidden/ambient pages do not keep fetching.
• Missing/stale weather, unavailable imagery and offline/reconnect states remain usable and truthful.
• Verify weather payload parity and replay fixtures, radar request lifecycle and cancellation.

Blocked by

• [Watch] 2 - Adapt gauges and navigation #485
• [Watch] 3 - Mirror watch settings #486

Related

• [Watch] 1 - Set up watch app #484
• [Watch] 2 - Adapt gauges and navigation #485
• [Watch] 3 - Mirror watch settings #486
• [Watch] 4 - Mirror route navigation #487
• [Watch] 6 - Control Board lights #489
• [Watch] 7 - Control Board Move #490
• [Watch] 8 - Complete diagnostics and ride validation #491
• [Watch] 9 - Prepare App Store shipping #493

[KacperKozak]

Implemented in fcb7457 on watchos.

Not verified on hardware: no physical Apple Watch, locked iPhone, or live weather run — forecast arrival on the wrist, radar fetching over the watch's own network, and radar cancellation on wrist-down remain unmeasured.
The iPhone app itself was not compiled (no Pods/workspace on this machine); phone-side changes were built by the SwiftPM package test:ios uses.