chore: initialize monorepo tooling

.env.example

@@ -0,0 +1,11 @@
+NODE_ENV=development
+DATABASE_URL=postgresql://postgres:postgres@localhost:5432/personal_brand
+API_PORT=3001
+ADMIN_PORT=3000
+SESSION_SECRET=replace-with-a-long-random-value
+OBJECT_STORAGE_ENDPOINT=
+OBJECT_STORAGE_BUCKET=
+OBJECT_STORAGE_ACCESS_KEY=
+OBJECT_STORAGE_SECRET_KEY=
+WECHAT_APP_ID=
+WECHAT_APP_SECRET=