Implement a slash-command shortcuts feature in the recall chat window that mirrors the functionality currently available in the Comet Browser assistant window. When a user types a leading slash in any chat field, a list of predefined or user-configurable prompt shortcuts should appear, allowing users to quickly select and execute frequently used prompts. The feature should support creating, editing, and deleting personal shortcuts directly within the recall chat interface, enabling efficient reuse of repetitive or complex prompts without manual re-entry. This will streamline user workflows and reduce redundant typing.