mypet: DeepSeek Harness Virtual Pet Plugin

mypet is a playful dress-up plugin for the DeepSeek Harness (DSH) desktop client. By simulating a Tamagotchi virtual pet, it provides developers with visual companionship. The pet features lively animations such as breathing and floating, automatic blinking, and wandering, and changes the ambient atmosphere based on the time of day and weather. The panel includes status, wardrobe, achievements, and more, supporting feeding, playing, dress-up, a ball-catching mini-game, and an economic system. It includes built-in sound effects and particle effects, supports offline settlement and save sharing, and aims to make the coding experience more enjoyable.