dsh-whale-celebration: Trigger the DeepSeek whale to spray water at the bottom of the page for 3 seconds upon task completion.

dsh-whale-celebration is a DSH Web plugin (MIT licensed) designed to solve the problem of repeatedly refreshing to confirm task completion when long tasks run in the background. When the root agent of the user's direct conversation changes from "running" to "idle", a DeepSeek official whale spouting water jumps up from the bottom of the page and sinks after 3 seconds. The animation does not trigger for child agent completions, and the animation layer does not intercept clicks. The plugin consists of a Host and a Client: the Host runs inside the DSH process to listen for "agent/status" events and provide polling interfaces, while the Client runs on the browser side to poll every 0.9 seconds and play the animation. Installation requires only one command followed by a restart; the package declares `dsh.bundle`, which is automatically merged into the profile, requiring no manual configuration editing. Multi-tab compatible.