add. Closes #8

package.json

@@ -13,6 +13,7 @@
     "format": "node_modules/.bin/prettier --write ./"
   },
   "dependencies": {
+    "@a2seven/yoo-checkout": "^1.1.4",
     "@nuxt/content": "^3.6.0",
     "@nuxt/fonts": "^0.11.4",
     "@nuxt/icon": "^1.13.0",
@@ -23,9 +24,15 @@
     "@pinia/nuxt": "^0.5.5",
     "@tailwindcss/postcss": "^4.1.10",
     "better-sqlite3": "^11.10.0",
+    "crypto-js": "^4.2.0",
+    "date-fns": "^4.1.0",
     "husky": "^9.1.7",
+    "nodemailer": "^7.0.3",
     "nuxt": "^3.17.5",
+    "nuxt-mail": "^6.0.2",
     "nuxt-schema-org": "^5.0.5",
+    "pg": "^8.16.2",
+    "postgres": "^3.4.7",
     "swiper": "^11.2.8",
     "vue": "^3.5.16"
   },
@@ -34,6 +41,7 @@
     "@nuxt/test-utils": "^3.11.3",
     "@nuxtjs/tailwindcss": "^6.11.4",
     "@types/node": "^22.0.0",
+    "@types/pg": "^8.15.4",
     "@vue/eslint-config-prettier": "^10.2.0",
     "@vue/eslint-config-typescript": "^14.5.0",
     "autoprefixer": "^10.4.18",