chore(tooling): use vite-plus formatting

Author: altaywtf

CONTRIBUTING.md

@@ -19,7 +19,7 @@ Run the repo guardrail before opening or updating a pull request:
 vp run verify
 ```
 
-That command runs type checks, package build, unit tests, and coverage using the same entrypoint CI relies on.
+That command runs formatting, linting, package build, unit tests, and coverage using the same entrypoint CI relies on.
 
 ## Optional Smoke Test
 

package.json

@@ -56,14 +56,12 @@
     "sockjs-client": "^1.5.0"
   },
   "devDependencies": {
-    "@putdotio/prettier-config": "^1.0.0",
     "@types/node": "^24.0.0",
     "@types/sockjs-client": "^1.1.1",
     "@vitest/coverage-v8": "4.1.7",
     "typescript": "^5.9.3",
     "vite-plus": "^0.1.20"
   },
-  "prettier": "@putdotio/prettier-config",
   "engines": {
     "node": ">=24.14.0"
   },