Condense UI labels and align obstacle statistics

frontend/src/components/ScenePhase.svelte

@@ -41,7 +41,7 @@
                                   e.currentTarget.classList.remove("dragging");
                               }} />
                     {:else}
-                        <p class="empty-text text-center">Your hand is empty! (You draw cards when playing cards that match the suit color of the obstacle.)</p>
+                        <p class="empty-text text-center">Empty hand. Match an obstacle’s color to draw cards.</p>
                     {/each}
                 </div>
             </div>
@@ -55,7 +55,7 @@
 
         <div class="card glass-panel obstacle-list-card">
             <div class="card-header">
-                <h3>🌊 The Obstacle List</h3>
+                <h3>🌊 Obstacles</h3>
                 <span class="deck-counter">🎴 Deck: {state.game.deck_cards ? JSON.parse(state.game.deck_cards).length : 0} cards left</span>
             </div>
             <ObstacleBoard {state} />