# description
Wall content export schema. Single source of truth for the 9 content types (Seed/Gist/Post/Todo/Card/Talk/Reel/Series/Trail) plus WallAIConversation (supplementary, vault 외 — Wall AI 사적 대화 세션) plus supplementary data (media, reactions, comments, upstreams, marginalia). Each file (seeds.json/posts.json/.../wall_ai_conversations.json) is an array of rows whose shape refers to the corresponding type schema under $defs.