chore: initialize typing-chud project with Unified API structure

- Copy vim-snake structure stripped of game-specific logic
- Remove finalScore calculation (raw data only)
- Setup example app with keybinding state management
- Empty board renders and waits for game logic

example/vite.config.ts

@@ -0,0 +1,22 @@
+import { defineConfig } from "vite";
+import tailwindcss from '@tailwindcss/vite'
+import react from "@vitejs/plugin-react";
+import { fileURLToPath } from "node:url";
+import { dirname, resolve } from "node:path";
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const libSource = resolve(__dirname, "../src");
+
+export default defineConfig({
+  plugins: [react(), tailwindcss()],
+  resolve: {
+    alias: {
+      "@vimazing/vim-snake": libSource, // use source during dev
+    },
+  },
+  server: {
+    port: 5173,
+    open: true,
+  },
+});
+