chore: 初始化仓库

中华文明全图鉴——文物全图系统（PC Web 地图 + NestJS API + 管理后台）。含三大 IP（文物南迁北归 / 国宝海外回归 / 博物馆手艺人）、AI 文物对话、文物地图与详情、以及 demo-video-kit 演示视频生成工具。
2026-06-13 20:55:44 +08:00
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+// 校对本地已下载的文物图片：识别真实图片类型、规范扩展名，并把 DB image_url 指向本地路径。
+import { Pool } from "pg";
+import fs from "fs";
+import path from "path";
+import { fileURLToPath } from "url";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const PUBLIC_DIR = path.resolve(__dirname, "../../apps/web/public/artifacts");
+const pool = new Pool({
+  connectionString:
+    process.env.DATABASE_URL ?? "postgresql://postgres@localhost:5432/wenwumap",
+});
+
+function detectExt(buf) {
+  if (buf.length < 12) return null;
+  if (buf[0] === 0xff && buf[1] === 0xd8) return "jpg";
+  if (buf[0] === 0x89 && buf[1] === 0x50 && buf[2] === 0x4e && buf[3] === 0x47) return "png";
+  if (buf[0] === 0x47 && buf[1] === 0x49 && buf[2] === 0x46) return "gif";
+  if (buf.slice(0, 4).toString() === "RIFF" && buf.slice(8, 12).toString() === "WEBP") return "webp";
+  if (buf.slice(0, 5).toString().includes("<svg") || buf.slice(0, 5).toString().includes("<?xml")) return "svg";
+  return null;
+}
+
+const main = async () => {
+  if (!fs.existsSync(PUBLIC_DIR)) {
+    console.log("无本地图片目录");
+    return;
+  }
+  const files = fs.readdirSync(PUBLIC_DIR);
+  const { rows } = await pool.query(
+    "SELECT id, image_url FROM artifacts WHERE image_url IS NOT NULL ORDER BY unified_map_id"
+  );
+
+  let ok = 0;
+  let bad = 0;
+  for (const { id } of rows) {
+    const match = files.find((f) => f.startsWith(id));
+    if (!match) continue;
+    const full = path.join(PUBLIC_DIR, match);
+    const stat = fs.statSync(full);
+    if (stat.size < 1024) {
+      fs.rmSync(full);
+      bad++;
+      continue;
+    }
+    const buf = fs.readFileSync(full).subarray(0, 16);
+    const ext = detectExt(buf);
+    if (!ext) {
+      bad++;
+      console.log(`✗ ${id} 非有效图片，跳过`);
+      continue;
+    }
+    const desired = `${id}.${ext}`;
+    if (match !== desired) {
+      fs.renameSync(full, path.join(PUBLIC_DIR, desired));
+      // 清理同 id 其它残留
+      files
+        .filter((f) => f.startsWith(id) && f !== desired && f !== match)
+        .forEach((f) => fs.rmSync(path.join(PUBLIC_DIR, f), { force: true }));
+    }
+    await pool.query("UPDATE artifacts SET image_url = $1 WHERE id = $2", [
+      `/artifacts/${desired}`,
+      id,
+    ]);
+    ok++;
+    console.log(`✓ ${id} -> /artifacts/${desired}`);
+  }
+
+  await pool.end();
+  console.log(`校对完成：本地化 ${ok}，无效 ${bad}`);
+};
+
+main().catch((e) => {
+  console.error(e);
+  process.exit(1);
+});