dsh-delivery-cards: Standalone Delivery Card Rows — Fixing Link Preemption and Window Visibility Issues

`dsh-delivery-cards` is a DeepSeek Harness Web plugin designed to solve an issue where official delivery cards disappear in multi-plugin environments because rendering is preempted by `dsh-better-sidebar`. The plugin intervenes with a priority of -2, renders only when a `present` declaration exists, and fixes the invisible window issue on Windows. It provides standalone card rows, support for 11 file icon types, theme adaptation, and a heuristic fallback mechanism, ensuring that delivery cards display correctly across various models.