presentation-report-preflight

Preflight planning skill before HTML/PPT deck generation. Use when the user wants to create, rewrite, convert, or strengthen a real report deck, sales proposal（销售提案）, investor roadshow（融资/路演）, product launch（产品发布）, promotion defense（晋升答辩）, consulting/strategy deck（咨询/战略汇报）, training（培训）, technical talk（技术分享）, retrospective（复盘）, case-study deck（客户案例）, or a downstream HTML PPT workflow handed to a slide-generation skill (e.g. `frontend-slides-editable`, `guizang-ppt-skill`, `huashu-design`, or any future skill — these are illustrative; the actual downstream is resolved at runtime against the available skills, never assumed to exist). Turns a topic, source document, old deck, PDF, data, or notes into a Presentation Strategy Brief with audience, scenario, goal, narrative framework, timing brief, conclusion-style title chain, page-level content_spec, evidence plan, speaker notes, Q&A risks, visual intent, constraints, universal handoff contract, and optional adapter appendix. Infer direction first, confirm directi