fix: fix Dockerfile db push order to generate db in /app/data

Dockerfile

@@ -38,16 +38,16 @@ RUN mkdir -p /app/data && chmod 777 /app/data
 # 复制 node_modules
 COPY --from=builder /app/node_modules ./node_modules
 
-# 设置数据库环境变量并初始化数据库
-ENV DATABASE_URL="file:/app/data/student.db"
-RUN npx prisma db push
-
 # 复制 Prisma
 COPY --from=builder /app/prisma ./prisma
 
 # 复制 package.json
 COPY --from=builder /app/package.json ./
 
+# 设置数据库环境变量并初始化数据库
+ENV DATABASE_URL="file:/app/data/student.db"
+RUN npx prisma db push
+
 # 复制构建产物
 COPY --from=builder /app/.output ./