GitHub Issues-First Workflow Default : Use GitHub Issues exclusively for all content, hierarchy, and tracking. Optional : Link to Projects v2 for cross-repo visualization only. Self-Evolving Skill : This skill improves through use. If instructions are wrong, parameters drifted, or a workaround was needed — fix this file immediately, don't defer. Only update for real, reproducible issues. Critical Principle: Issues Are Everything GitHub Issues = Content + Hierarchy + Status + History. GitHub Projects v2 = Visualization layer only (no content, no history). With sub-issues (GA April 2025), Issue…