add read me

scripts/clean-migration-fk-idx.js

@@ -0,0 +1,37 @@
+// Script: scripts/clean-migration-fk-idx.js
+// ลบบรรทัดที่มี FK_ หรือ idx_ ในไฟล์ migration ทั้งหมด และแทนที่ด้วย comment
+
+const fs = require("fs");
+const path = require("path");
+
+const MIGRATION_DIR = path.join(__dirname, "../src/migration");
+
+function processFile(filePath) {
+  const lines = fs.readFileSync(filePath, "utf8").split("\n");
+  let changed = false;
+  const newLines = lines.map((line) => {
+    if (/FK_|idx_/.test(line)) {
+      changed = true;
+      return "        // removed FK_/idx_ auto-cleanup";
+    }
+    return line;
+  });
+  if (changed) {
+    fs.writeFileSync(filePath, newLines.join("\n"), "utf8");
+    console.log("Cleaned:", filePath);
+  }
+}
+
+function walk(dir) {
+  fs.readdirSync(dir).forEach((f) => {
+    const fullPath = path.join(dir, f);
+    if (fs.statSync(fullPath).isDirectory()) {
+      walk(fullPath);
+    } else if (f.endsWith(".ts")) {
+      processFile(fullPath);
+    }
+  });
+}
+
+walk(MIGRATION_DIR);
+console.log("Migration FK_/idx_ cleanup complete.");