add landing

package.json

@@ -14,8 +14,15 @@
     "lint": "eslint . --fix",
     "format": "prettier --write src/"
   },
+  "engines": {
+    "node": ">=v20.10.0",
+    "pnpm": ">=8.15.0"
+  },
   "dependencies": {
+    "element-plus": "^2.8.7",
+    "events": "^3.3.0",
     "pinia": "^2.2.6",
+    "pouchdb-browser": "^9.0.0",
     "vue": "^3.5.12",
     "vue-router": "^4.4.5"
   },
@@ -24,6 +31,7 @@
     "@tsconfig/node20": "^20.1.4",
     "@types/jsdom": "^21.1.7",
     "@types/node": "^20.17.6",
+    "@types/pouchdb-browser": "^6.1.5",
     "@vitejs/plugin-vue": "^5.1.4",
     "@vitest/eslint-plugin": "1.1.7",
     "@vue/eslint-config-prettier": "^10.1.0",