✨ Fix import.meta.dir fallback handling in build scripts

scripts/build-bundle.ts

@@ -174,7 +174,7 @@ async function main() {
       const outFiles = Object.entries(result.metafile.outputs)
       for (const [file, info] of outFiles) {
         if (file.endsWith('.mjs')) {
-          const sizeMB = (info.bytes / 1024 / 1024).toFixed(2)
+          const sizeMB = ((info as { bytes: number }).bytes / 1024 / 1024).toFixed(2)
           console.log(`\n  ${file}: ${sizeMB} MB`)
         }
       }

scripts/package-npm.ts

@@ -8,7 +8,13 @@
 import { readFileSync, writeFileSync, mkdirSync, copyFileSync, existsSync, chmodSync } from 'fs'
 import { resolve } from 'path'
 
-const ROOT = resolve(import.meta.dir, '..')
+// Bun: import.meta.dir — Node 21+: import.meta.dirname — fallback
+const __dir: string =
+  (import.meta as ImportMeta & { dir?: string; dirname?: string }).dir ??
+  (import.meta as ImportMeta & { dir?: string; dirname?: string }).dirname ??
+  new URL('.', import.meta.url).pathname
+
+const ROOT = resolve(__dir, '..')
 const DIST = resolve(ROOT, 'dist')
 const NPM_DIR = resolve(DIST, 'npm')
 const CLI_BUNDLE = resolve(DIST, 'cli.mjs')