enfore the format in the ci, script to fail locally if version are di…

[Yostra]

Summary

This PR strictly enforces Prettier formatting in CI and locks the Prettier version to prevent local drift.

Changes

• Enforced formatting in CI: Removed continue-on-error: true from the formatting check step in .github/workflows/ci.yml.
• Pinned Prettier version: Updated package.json to pin prettier exactly to 3.6.2 (removing the ^) to prevent accidental version drift.
• Added Prettier version check: Created a scripts/check-prettier-version.js script that validates the locally installed Prettier version against the exact resolution in pnpm-lock.yaml as a part of the pnpm format and pnpm format:check scripts. If a local version is out of sync, the script will immediately exit with an error, prompting you to run pnpm install.

Testing

I've tested locally by installing a different version of prettier and running pnpm format, this resulted in an error:

❌ ERROR: Installed Prettier version (3.5.3) does not match the expected locked version in pnpm-lock.yaml (3.6.2).
   Please run 'pnpm install' to sync your local environment with CI and prevent formatting drift.