Implement the 012-turn-navigation feature that adds a RetreatTurn domain operation and relocates turn controls to a navigation bar at the top of the encounter tracker

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

apps/web/src/components/action-bar.tsx

@@ -4,10 +4,9 @@ import { Input } from "./ui/input";
 
 interface ActionBarProps {
 	onAddCombatant: (name: string) => void;
-	onAdvanceTurn: () => void;
 }
 
-export function ActionBar({ onAddCombatant, onAdvanceTurn }: ActionBarProps) {
+export function ActionBar({ onAddCombatant }: ActionBarProps) {
 	const [nameInput, setNameInput] = useState("");
 
 	const handleAdd = (e: FormEvent) => {
@@ -31,9 +30,6 @@ export function ActionBar({ onAddCombatant, onAdvanceTurn }: ActionBarProps) {
 					Add
 				</Button>
 			</form>
-			<Button variant="outline" size="sm" onClick={onAdvanceTurn}>
-				Next Turn
-			</Button>
 		</div>
 	);
 }