kdwarn: Introducing pgtui, a Postgres TUI client

pgtui is a Postgres TUI client written in Rust that lets users interact with a PostgreSQL database from the terminal. Built with ratatui, sqlx, and the toml crate, it supports browsing relations, paginated data viewing, sorting, filtering with WHERE clauses, inserting and editing records via a terminal editor, deleting records, multi-column primary key support, and managing multiple database connections. The project originated from the idea of writing content in TOML/markdown and storing it in a database.