refactor: 降级到 Prisma 6，移除 adapter 依赖

Prisma 6 内置 SQLite 引擎，无需 adapter、无需编译工具链，
与 no-whatever 项目保持一致的技术方案。

Dockerfile

@@ -32,7 +32,6 @@ COPY --from=builder /app/template.db ./template.db
 
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
-COPY --from=builder /app/node_modules/@libsql ./node_modules/@libsql
 
 RUN mkdir -p /app/data && chown nextjs:nodejs /app/data
 

next.config.ts

@@ -2,7 +2,6 @@ import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
   output: "standalone",
-  serverExternalPackages: ["@libsql/client"],
 };
 
 export default nextConfig;

package.json

@@ -9,8 +9,7 @@
     "lint": "eslint"
   },
   "dependencies": {
-    "@prisma/adapter-libsql": "^7.4.1",
-    "@prisma/client": "^7.4.1",
+    "@prisma/client": "^6.19.2",
     "framer-motion": "^12.34.3",
     "lucide-react": "^0.575.0",
     "next": "16.1.6",
@@ -24,7 +23,7 @@
     "@types/react-dom": "^19",
     "eslint": "^9",
     "eslint-config-next": "16.1.6",
-    "prisma": "^7.4.1",
+    "prisma": "^6.19.2",
     "tailwindcss": "^4",
     "typescript": "^5"
   }

prisma.config.ts

@@ -1,14 +0,0 @@
-// This file was generated by Prisma, and assumes you have installed the following:
-// npm install --save-dev prisma dotenv
-import "dotenv/config";
-import { defineConfig } from "prisma/config";
-
-export default defineConfig({
-  schema: "prisma/schema.prisma",
-  migrations: {
-    path: "prisma/migrations",
-  },
-  datasource: {
-    url: process.env["DATABASE_URL"],
-  },
-});

prisma/schema.prisma

@@ -1,10 +1,10 @@
 generator client {
-  provider = "prisma-client"
-  output   = "../src/generated/prisma"
+  provider = "prisma-client-js"
 }
 
 datasource db {
   provider = "sqlite"
+  url      = env("DATABASE_URL")
 }
 
 model Item {

src/lib/prisma.ts

@@ -1,14 +1,11 @@
-import { PrismaClient } from "@/generated/prisma/client";
-import { PrismaLibSql } from "@prisma/adapter-libsql";
+import { PrismaClient } from "@prisma/client";
 
-const globalForPrisma = globalThis as unknown as { prisma: PrismaClient };
+const globalForPrisma = globalThis as unknown as {
+  prisma: PrismaClient | undefined;
+};
 
-function createClient() {
-  const url = process.env.DATABASE_URL ?? "file:./dev.db";
-  const adapter = new PrismaLibSql({ url });
-  return new PrismaClient({ adapter });
+export const prisma = globalForPrisma.prisma ?? new PrismaClient();
+
+if (process.env.NODE_ENV !== "production") {
+  globalForPrisma.prisma = prisma;
 }
-
-export const prisma = globalForPrisma.prisma || createClient();
-
-if (process.env.NODE_ENV !== "production") globalForPrisma.prisma = prisma;