Katan: pinch-zoom and pan in portrait; max zoom 6x

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01TWwLCrXa9aFVg8dZsCdLBZ

app/src/main/java/org/prolibertate/games/ui/game/catan/CatanHud.kt

@@ -214,7 +214,7 @@ fun HudConfirmButtons(
 fun ZoomPanBox(
     modifier: Modifier = Modifier,
     minScale: Float = 1f,
-    maxScale: Float = 3f,
+    maxScale: Float = 6f,
     content: @Composable () -> Unit,
 ) {
     var scale by remember { mutableFloatStateOf(1f) }

app/src/main/java/org/prolibertate/games/ui/game/catan/CatanScreen.kt

@@ -379,7 +379,8 @@ fun CatanScreen(
                         players(false)
                         if (current.isCk) CatanBarbarians(current, style = style)
                         promptRow()
-                        Box(Modifier.weight(1f).fillMaxWidth(), contentAlignment = Alignment.Center) {
+                        // Pinch to zoom and drag to pan, as in landscape: a wide Seafarers map is small at fit.
+                        ZoomPanBox(Modifier.weight(1f).fillMaxWidth()) {
                             board(Modifier)
                         }
                         handAndActions()