refactor(build): migrate build script to use bun build command directly

package.json

@@ -15,7 +15,7 @@
     "dist"
   ],
   "scripts": {
-    "build": "bun run scripts/build.ts",
+    "build": "bun build ./src/index.ts --outdir ./dist --format esm --target browser --sourcemap=external --external @extism/extism --entry-naming enclave.js && bun run tsc --emitDeclarationOnly --declaration -p src/tsconfig.json --outDir dist",
     "typecheck": "tsc --noEmit -p src/tsconfig.json",
     "clean": "rm -rf dist"
   },

scripts/build.ts

@@ -1,30 +0,0 @@
-import { $ } from 'bun';
-
-const result = await Bun.build({
-  entrypoints: ['./src/index.ts'],
-  outdir: './dist',
-  format: 'esm',
-  target: 'browser',
-  minify: false,
-  sourcemap: 'external',
-  external: ['@extism/extism'],
-  naming: {
-    entry: 'enclave.js',
-  },
-});
-
-if (!result.success) {
-  console.error('Build failed:');
-  for (const log of result.logs) {
-    console.error(log);
-  }
-  process.exit(1);
-}
-
-console.log('Build successful:');
-for (const output of result.outputs) {
-  console.log(`  ${output.path}`);
-}
-
-await $`bun run tsc --emitDeclarationOnly --declaration -p src/tsconfig.json --outDir dist`;
-console.log('Type declarations generated');