perf(compile): 启用 bytecode + minify + inline sourcemap

- Bun 官方 bytecode caching：中型应用 startup ~2x（docs.bun.sh/docs/bundler/bytecode）
- minify：减小 bytecode 体积，二进制仅 +2MB sourcemap
- sourcemap inline：嵌入二进制，保证错误堆栈可读，并在 compile.ts 清理 bundler 残留的 *.js.map

compile.ts

@@ -49,12 +49,18 @@ const main = async () => {
     entrypoints: [ENTRYPOINT],
     outdir: OUTDIR,
     compile: { outfile, target },
+    minify: true,
+    bytecode: true,
+    sourcemap: 'inline',
   })
 
   if (!result.success) {
     throw new Error(result.logs.map(String).join('\n'))
   }
 
+  // Bun bundler still writes *.js.map next to the binary even with inline sourcemap.
+  await rm(`${OUTDIR}/${ENTRYPOINT.replace(/\.ts$/, '')}.js.map`, { force: true })
+
   console.log(`✓ ${target} → ${OUTDIR}/${outfile}`)
 }