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/landing/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "@kvarta/landing",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "next dev -p 3000",
+    "build": "next build",
+    "start": "next start -p 3000",
+    "typecheck": "tsc -p .",
+    "lint": "eslint ."
+  },
+  "dependencies": {
+    "next": "^16.4.2",
+    "react": "^19.3.1",
+    "react-dom": "^19.3.1"
+  },
+  "devDependencies": {
+    "@kvarta/shared": "workspace:*",
+    "@tailwindcss/postcss": "^4.3.3",
+    "@types/react": "^19.3.0",
+    "@types/react-dom": "^19.2.0",
+    "eslint": "^9.39.0",
+    "eslint-config-next": "^16.4.2",
+    "tailwindcss": "^4.3.3"
+  }
+}