feat: 修改部分导入文本的逻辑，添加部署脚本和样式文件，更新数据库迁移逻辑

- 新增部署脚本 `build-deploy-bundle.mjs`，用于构建和部署 web 和 server 目录。
- 新增样式文件 `index-acd65452.css`，包含基础样式和响应式设计。
- 新增脚本 `repro-import-text.mjs`，用于测试文本导入 API。
- 新增测试文件 `db-migration-score-zero.test.ts`，验证历史数据库中 questions.score 约束的迁移逻辑。
- 更新数据库初始化逻辑，允许插入 score=0 的问题。

scripts/build-deploy-bundle.mjs

@@ -0,0 +1,88 @@
+import fs from 'node:fs/promises';
+import path from 'node:path';
+
+const projectRoot = process.cwd();
+
+const distDir = path.join(projectRoot, 'dist');
+const deployDir = path.join(projectRoot, 'deploy_bundle');
+const deployWebDir = path.join(deployDir, 'web');
+const deployServerDir = path.join(deployDir, 'server');
+
+const exists = async (p) => {
+  try {
+    await fs.access(p);
+    return true;
+  } catch {
+    return false;
+  }
+};
+
+const ensureDir = async (p) => {
+  await fs.mkdir(p, { recursive: true });
+};
+
+const emptyDir = async (p) => {
+  await fs.rm(p, { recursive: true, force: true });
+  await fs.mkdir(p, { recursive: true });
+};
+
+const copyDir = async (src, dest) => {
+  await fs.cp(src, dest, { recursive: true });
+};
+
+const copyFile = async (src, dest) => {
+  await ensureDir(path.dirname(dest));
+  await fs.copyFile(src, dest);
+};
+
+if (!(await exists(distDir))) {
+  throw new Error('未找到 dist/。请先执行：npm run build');
+}
+
+// 1) web: dist/ 下除 api/ 之外所有内容
+await emptyDir(deployWebDir);
+
+const distEntries = await fs.readdir(distDir, { withFileTypes: true });
+for (const entry of distEntries) {
+  if (entry.name === 'api') continue;
+  const src = path.join(distDir, entry.name);
+  const dest = path.join(deployWebDir, entry.name);
+  if (entry.isDirectory()) {
+    await copyDir(src, dest);
+  } else {
+    await copyFile(src, dest);
+  }
+}
+
+// 2) server: dist/api -> deploy_bundle/server/dist/api
+await ensureDir(deployServerDir);
+await ensureDir(path.join(deployServerDir, 'dist'));
+
+const distApiDir = path.join(distDir, 'api');
+if (!(await exists(distApiDir))) {
+  throw new Error('未找到 dist/api/。请确认 npm run build 已成功执行（包含 scripts/build-api.mjs）。');
+}
+
+await emptyDir(path.join(deployServerDir, 'dist', 'api'));
+await copyDir(distApiDir, path.join(deployServerDir, 'dist', 'api'));
+
+// 3) 同步 server 运行所需文件
+await copyFile(path.join(projectRoot, 'package.json'), path.join(deployServerDir, 'package.json'));
+if (await exists(path.join(projectRoot, 'package-lock.json'))) {
+  await copyFile(path.join(projectRoot, 'package-lock.json'), path.join(deployServerDir, 'package-lock.json'));
+}
+
+// ecosystem.config.cjs：以仓库根目录为准同步（如需环境差异，可在服务器上覆盖 env/cwd）
+if (await exists(path.join(projectRoot, 'ecosystem.config.cjs'))) {
+  await copyFile(path.join(projectRoot, 'ecosystem.config.cjs'), path.join(deployServerDir, 'ecosystem.config.cjs'));
+}
+
+// sanity check
+const initSql = path.join(deployServerDir, 'dist', 'api', 'database', 'init.sql');
+if (!(await exists(initSql))) {
+  throw new Error('缺少 deploy_bundle/server/dist/api/database/init.sql（postbuild 应该会复制）。');
+}
+
+console.log('deploy_bundle 已生成：');
+console.log('- deploy_bundle/web');
+console.log('- deploy_bundle/server');