dsh-tui-jobs: dsh-TUI Background Job Management Panel

dsh-tui-jobs is a background task management plugin developed specifically for dsh-TUI, designed to fill functional gaps in the official WebUI. It provides task listing, real-time status viewing, detailed output reading, and cancellation via the `/jobs` command. The design emphasizes preventing accidental actions: it only reads output from tasks that have reached a terminal state, and cancellation requires a double-click within 3 seconds. Installation includes cloning the repository, packaging it, and adding it with the `dsh plugin` command, after which task interactions can be performed using keyboard shortcuts in the TUI.