Auto-open stat block panel when adding first bestiary creature

When the side panel is in its initial closed state (not user-collapsed),
adding a combatant from the bestiary now opens the panel to show its
stat block. This makes the panel discoverable without overriding a
deliberate collapse.

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

apps/web/src/App.tsx

@@ -128,9 +128,12 @@ export function App() {
 
 	const handleAddFromBestiary = useCallback(
 		(result: SearchResult) => {
-			addFromBestiary(result);
+			const creatureId = addFromBestiary(result);
+			if (creatureId && sidePanel.panelView.mode === "closed") {
+				sidePanel.showCreature(creatureId);
+			}
 		},
-		[addFromBestiary],
+		[addFromBestiary, sidePanel.panelView.mode, sidePanel.showCreature],
 	);
 
 	const handleCombatantStatBlock = useCallback(