refactor: replace esbuild with rolldown

package.json

@@ -4,7 +4,7 @@
   "main": "src/index.ts",
   "scripts": {
     "typecheck": "tsc --noEmit",
-    "build": "esbuild src/index.ts --bundle --outfile=dist/index.js --platform=node --target=node24 --minify",
+    "build": "rolldown -c",
     "test": "jest",
     "format": "oxfmt --write src/**/*.ts"
   },
@@ -14,9 +14,9 @@
     "@types/conventional-commits-parser": "5.0.2",
     "@types/jest": "30.0.0",
     "@types/node": "24.13.2",
-    "esbuild": "0.28.1",
     "jest": "30.4.2",
     "oxfmt": "0.59.0",
+    "rolldown": "1.2.0",
     "ts-jest": "29.4.11",
     "typescript": "5.9.3"
   },