feat: prefetch AMSAT status on foreground

Start AMSAT status prefetch when the app enters foreground and share the in-flight request with the status page fetch path to avoid duplicate network requests.

core/domain/src/main/java/com/rtbishop/look4sat/core/domain/repository/IAmSatRepository.kt

@@ -12,6 +12,9 @@ interface IAmSatRepository {
     /** Fetch and parse the AMSAT status page; null on failure. */
     suspend fun fetchStatus(forceRefresh: Boolean = false): SatStatusPage?
 
+    /** Warm the foreground-session cache without forcing a network reload. */
+    suspend fun prefetchStatus()
+
     /** Clear the foreground-session status cache. */
     fun clearStatusCache()