fix(wasm): enable take-from-foundation in web game client

GameState::new_with_mode defaults take_from_foundation=false (non-
standard; the flag exists so the desktop can offer it as a setting).
The WASM web client has no settings layer, so this flag was never
flipped on — every drag or double-click from a foundation pile was
silently rejected by the rules engine.

Set take_from_foundation=true in both SolitaireGame::new (fresh games)
and SolitaireGame::from_saved (restored games, which may have the old
default serialised).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

solitaire_wasm/src/lib.rs

@@ -366,9 +366,10 @@ impl SolitaireGame {
         } else {
             DrawMode::DrawOne
         };
-        SolitaireGame {
+        let mut game = GameState::new_with_mode(seed as u64, dm, GameMode::Classic);
-            game: GameState::new_with_mode(seed as u64, dm, GameMode::Classic),
+        // The web client has no settings layer; enable standard Klondike rule unconditionally.
-        }
+        game.take_from_foundation = true;
+        SolitaireGame { game }
     }
 
     /// Full pile snapshot as a JS object.
@@ -437,7 +438,12 @@ impl SolitaireGame {
     /// that can't be deserialised (e.g. from a future schema version).
     pub fn from_saved(json: &str) -> Result<SolitaireGame, JsValue> {
         serde_json::from_str::<GameState>(json)
-            .map(|game| SolitaireGame { game })
+            .map(|mut game| {
+                // Older saves serialised with take_from_foundation=false (the core default).
+                // The web client has no settings layer, so enforce the standard rule here.
+                game.take_from_foundation = true;
+                SolitaireGame { game }
+            })
             .map_err(|e| JsValue::from_str(&e.to_string()))
     }