Spring Boot Twitter Autoposter

I need a small Spring Boot application that connects to the Twitter API, authenticates with OAuth or OAuth2, and publishes a tweet automatically once each day on a fixed schedule I can adjust with a cron-style expression. The core is simple—no reply or retweet logic—just a clean, reliable job that fires at the scheduled interval, pulls the text I supply (hard-coded, read from a file, or picked up from an environment variable is fine), and posts it.

Please structure the project like any typical Maven Spring Boot service.

Deliverables are the complete source, a compiled runnable jar, and that brief setup guide.