Restore core ESM import rewrite script

Author: Ri0n72Y

scripts/rewrite-esm-imports.js

@@ -1,37 +1,23 @@
 /**
- * Post-build script: rewrites extensionless relative imports in a built package's
- * dist/ output to include explicit ".js" extensions.
+ * Post-build script: rewrites extensionless relative imports in the core
+ * package's dist/ output to include explicit ".js" extensions.
  *
- * tsc with moduleResolution:"bundler" emits `from "./foo"` without an extension.
+ * tsc with moduleResolution:"bundler" emits `from "./foo"` (no extension).
  * Node.js ESM requires `from "./foo.js"`. This script bridges the gap.
- *
- * Usage:
- * - node scripts/rewrite-esm-imports.js        rewrites packages/core/dist
- * - node scripts/rewrite-esm-imports.js server rewrites packages/server/dist
  */
-import { existsSync, readFileSync, writeFileSync } from "node:fs";
+import { readFileSync, writeFileSync } from "node:fs";
 import { dirname, join } from "node:path";
 import { fileURLToPath } from "node:url";
 import { globSync } from "glob";
 
 const __dirname = dirname(fileURLToPath(import.meta.url));
 const root = join(__dirname, "..");
-const packageName = process.argv[2] ?? "core";
-const allowedPackages = new Set(["core", "server"]);
-
-if (!allowedPackages.has(packageName)) {
-  throw new Error(`Unsupported package for ESM import rewrite: ${packageName}`);
-}
-
-const distDir = join(root, "packages", packageName, "dist");
-if (!existsSync(distDir)) {
-  throw new Error(`Cannot rewrite ESM imports because dist directory does not exist: ${distDir}`);
-}
+const distDir = join(root, "packages", "core", "dist");
 
 const files = globSync("**/*.js", { cwd: distDir, absolute: true });
 
-// Match: from "./anything" or from "../anything".
-// The negative lookahead skips specifiers that already end in common explicit extensions.
+// Match: from "./anything" or from "../anything"
+// Negative lookahead: skip if already ends with .js, .json, .node, or is a bare specifier
 const IMPORT_RE = /(from\s+["'])(\.\.?\/[^"']+?)(?<!\.[a-zA-Z0-9]{1,4})(["'])/g;
 
 let totalRewrites = 0;
@@ -51,4 +37,4 @@ for (const filePath of files) {
   }
 }
 
-console.log(`\n✅  Rewrote ${totalRewrites} imports across ${files.length} files in ${packageName}/dist/\n`);
+console.log(`\n✅  Rewrote ${totalRewrites} imports across ${files.length} files in core/dist/\n`);