refactor: replace esbuild with rolldown

package.json

@@ -6,8 +6,8 @@
   "main": "src/index.ts",
   "scripts": {
     "typecheck": "tsc --noEmit",
-    "build": "esbuild src/index.ts --bundle --outfile=dist/index.js --platform=node --target=node24 --minify",
-    "test": "jest",
+    "build": "rolldown -c",
+    "test": "vitest",
     "format": "oxfmt",
     "format:check": "oxfmt --check"
   },
@@ -17,12 +17,11 @@
   },
   "devDependencies": {
     "@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",
+    "@vitest/coverage-v8": "4.1.10",
     "oxfmt": "0.59.0",
-    "ts-jest": "29.4.11",
-    "typescript": "5.9.3"
+    "rolldown": "1.2.0",
+    "typescript": "5.9.3",
+    "vitest": "4.1.10"
   }
 }