feat: bootstrap walking skeleton

src/state/store.ts

@@ -0,0 +1,26 @@
+import { create } from 'zustand';
+import type { GameView } from './viewModel';
+
+/**
+ * The view store. The runtime owns the authoritative engine state and pushes a
+ * fresh view snapshot here at ~10 fps; React components subscribe to slices of
+ * it. The store is a dumb mirror plus an event log — no game logic lives here.
+ */
+
+const MAX_LOG_LINES = 50;
+
+export interface GameStoreState extends GameView {
+  log: string[];
+  setView: (view: GameView) => void;
+  appendLog: (line: string) => void;
+}
+
+export const useGameStore = create<GameStoreState>((set) => ({
+  resources: [],
+  activeActionId: null,
+  actionName: null,
+  actionProgress: 0,
+  log: [],
+  setView: (view) => set(view),
+  appendLog: (line) => set((state) => ({ log: [...state.log, line].slice(-MAX_LOG_LINES) })),
+}));