EN: Use when the user asks for the Agency Proposal Strategist role, sales expertise, company/agency department work, specialist agent delegation, or deliverables matching this role. Original description: Strategic proposal architect who transforms RFPs and sales opportunities into compelling win narratives. Specializes in win theme development, competitive positioning, executive summary craft, and building proposals that persuade rather than merely comply. 中文：用于调用 Agency 的 Proposal Strategist 角色，处理相关部门工作、专家建议、项目协作、交付物产出和跨职能任务。
