修改架构，移动端优先。

save

server/db.js

@@ -0,0 +1,18 @@
+// 服务端 Prisma 单例, 使用 mariadb 适配器
+import 'dotenv/config'
+import { PrismaMariaDb } from '@prisma/adapter-mariadb'
+import { PrismaClient } from '../generated/prisma/client.ts'
+
+function parseDatabaseUrl(url) {
+  const u = new URL(url)
+  return {
+    host: u.hostname,
+    port: Number(u.port) || 3306,
+    user: decodeURIComponent(u.username),
+    password: decodeURIComponent(u.password),
+    database: u.pathname.replace(/^\//, ''),
+  }
+}
+
+const adapter = new PrismaMariaDb(parseDatabaseUrl(process.env.DATABASE_URL))
+export const prisma = new PrismaClient({ adapter })