agent-bot: Add an access-controlled delivery team to DSH sessions

agent-bot is a DeepSeek Harness plugin maintained by EternalNight996 that transforms a DSH session into a multi-agent delivery team featuring a task DAG, independent review, and evidence delivery, complete with a desktop pet. The article introduces the team runtime, setup wizard process, role lineup, and desktop pet behavior, provides official installation commands, quality gate configuration fields and default values, and reminds users to run with the current dsh process privileges and to check the source code and MIT license before installation.