oh-my-ticket: DSH's 5-Level Task System and run Batch Execution Plugin

oh-my-ticket (OMT) is a task management plugin designed for DeepSeek Harness. It treats the five-level task hierarchy (Epic→Story→SubStory→Ticket→SubTicket) as first-class citizens, addressing the issue of task lists scattered across conversations that are difficult to persist. It utilizes a dual-write architecture with SQLite for metadata storage and Markdown for content storage. It supports committing to the project directory via Git and allows for a global home rollback, alongside the `om t_reindex` command to rebuild the index. The UI provides three container types: a left sidebar, a floating window, and tabs. It features tree interaction, search and filtering, two-way linkage (mentions, automatic display of related tickets), and SSE-based real-time refreshes. The core `run` batch execution mechanism snapshots tickets into ordered batches, passing through...