dsh-virtual-product-team: Driving DSH's Product Pipeline Through Dialogue

`songoao25/dsh-virtual-product-team` is a conversational mode preset for DeepSeek Harness (DSH), designed to automate the full product lifecycle management through a multi-agent workflow. The tool decomposes tasks into 12 stages across 8 phases, including idea validation, requirement definition, technical design, development QA, release, marketing, and iteration. Its core mechanism employs "stage gating," where progress is reported to the user at the end of each phase, and advancement to the next stage occurs only after user approval. Users are only responsible for decision-making and approval, requiring neither technical expertise nor coding skills. For installation, it supports a full installation via `./install.sh` or installing only the skill pack under a specified profile. When in use, users need to start a new conversation and enable Product in the mode selector.