chore: pnpm workspace — landing, api, shared

apps/landing: Next.js 16 (App Router, standalone), Tailwind 4, ESLint
с запретом импорта из api. apps/api: Hono + better-sqlite3, сборка tsup,
/api/health. packages/shared: исходники TS без сборки. Vitest projects.

apps/api/src/app.ts

@@ -0,0 +1,7 @@
+import { Hono } from 'hono';
+
+export function createApp() {
+  const app = new Hono();
+  app.get('/api/health', (c) => c.json({ ok: true, version: process.env.APP_VERSION ?? 'dev' }));
+  return app;
+}