Add local scrape database mode and schema

scripts/create-local-scrape-db.ts

@@ -0,0 +1,33 @@
+import fs from "node:fs/promises";
+import mariadb from "mariadb";
+
+async function readEnv() {
+  return Object.fromEntries(
+    (await fs.readFile(".env", "utf8"))
+      .split(/\r?\n/)
+      .map((line) => line.trim())
+      .filter((line) => line && !line.startsWith("#") && line.includes("="))
+      .map((line) => {
+        const index = line.indexOf("=");
+        return [line.slice(0, index), line.slice(index + 1)];
+      }),
+  );
+}
+
+const env = await readEnv();
+const connection = await mariadb.createConnection({
+  host: env.DB_HOST || "127.0.0.1",
+  port: Number(env.DB_PORT || 3306),
+  user: env.DB_USER || "root",
+  password: env.DB_PASSWORD || "",
+});
+
+try {
+  const sql = await fs.readFile("sql/local-scrape-db.sql", "utf8");
+  for (const statement of sql.split(/;\s*(?:\r?\n|$)/).map((item) => item.trim()).filter(Boolean)) {
+    await connection.query(statement);
+  }
+  console.log("Local scrape database and schema are ready.");
+} finally {
+  await connection.end();
+}