feat(healthchat): show profile fields on profile screens

Renderer slot in UserProfileView (all three profile screens) shows
specialty, practice, address, contact links and further info from
the HealthChat API, with inline retry on failure.

features/userprofile/shared/src/main/kotlin/io/element/android/features/userprofile/shared/UserProfileView.kt

@@ -56,6 +56,8 @@ fun UserProfileView(
     openAvatarPreview: (username: String, url: String) -> Unit,
     onVerifyClick: (UserId) -> Unit,
     modifier: Modifier = Modifier,
+    // HealthChat fork: slot for the extended profile fields, rendered by features/healthchat.
+    healthChatProfileSection: @Composable (userId: UserId, isCurrentUser: Boolean) -> Unit = { _, _ -> },
 ) {
     val snackbarHostState = rememberSnackbarHostState(snackbarMessage = state.snackbarMessage)
     Scaffold(
@@ -93,6 +95,7 @@ fun UserProfileView(
                 onCall = { intent -> state.dmRoomId?.let { onStartCall(it, intent) } }
             )
             Spacer(modifier = Modifier.height(26.dp))
+            healthChatProfileSection(state.userId, state.isCurrentUser)
             if (!state.isCurrentUser) {
                 VerifyUserSection(state, onVerifyClick = { onVerifyClick(state.userId) })
                 BlockUserSection(state)