feat: pr processing

[0xMukesh]

1. After starting the local instance of the server via pnpm dev, use either ngrok of cloudflare tunnels to tunnel localhost:3000 to a publicly available URL.
2. Add the localhost tunnel's URL under the webhook settings of the repository (https://github.com/superteamdao/reputation-bot/settings/hooks). Make sure that the URL points to /api/v1/webhook API route i.e the webhook URL would be something like this: <TUNNEL_URL>/api/v1/webhook
3. Create a random webhook secret and store it in the .env file and it add under the webhook settings as well.
4. Make sure that the "ping" request sent by GitHub to the server works properly without any kind of issues.