chore: establish YCode replication baseline and TODO

src/shared/conversation.ts

@@ -0,0 +1,62 @@
+/** YCode transport types for the restored WorkBuddy view contracts. */
+import type { PreviewArtifact } from './artifacts'
+export type PermissionMode = 'default-sandbox' | 'full-access'
+/** Conversation behavior, independent of filesystem approval/permission mode. */
+export type AgentMode = 'craft' | 'plan' | 'ask'
+
+export interface ChatAttachment {
+  id: string
+  name: string
+  mimeType: string
+  size: number
+  previewUrl?: string
+  path?: string
+}
+
+export interface QuestionOption {
+  id?: string
+  option?: string
+  label?: string
+  question?: string
+  description?: string
+  hint?: string
+}
+export interface QuestionItem {
+  id: string
+  question: string
+  options: Array<string | QuestionOption>
+  multiSelect?: boolean
+}
+export interface QuestionAnswer {
+  title?: string
+  questions: Array<{ id: string; question: string; answers: string[] }>
+}
+export interface PermissionOption { optionId: string; name: string; kind: string }
+export type InteractionStatus = 'pending' | 'responding' | 'answered' | 'rejected' | 'cancelled' | 'error'
+interface InteractionBase {
+  id: string
+  runId: string
+  toolCallId: string
+  title: string
+  status: InteractionStatus
+  error?: string
+}
+export type ChatInteraction =
+  | (InteractionBase & { kind: 'question'; questions: QuestionItem[]; answer?: QuestionAnswer; skipped?: boolean })
+  | (InteractionBase & { kind: 'approval'; requestId: string; options: PermissionOption[]; selectedOptionId?: string; scope?: string })
+export type InteractionResponse =
+  | { kind: 'question'; answer: QuestionAnswer; skipped?: boolean }
+  | { kind: 'approval'; optionId: string }
+
+export interface PlanStep { id: string; text: string; status: 'pending' | 'in_progress' | 'completed' | 'cancelled' }
+export interface PlanContent { id: string; title: string; steps: PlanStep[]; filePath?: string }
+export interface TaskContent {
+  id: string
+  title: string
+  description?: string
+  status: 'pending' | 'running' | 'success' | 'error' | 'cancelled'
+  summary?: string
+  toolCount?: number
+  durationMs?: number
+}
+export interface ArtifactContent { id: string; name: string; path: string; mimeType?: string; description?: string; preview?: PreviewArtifact }