feat: add TypeScript types for editor-embedded AI

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/types/editor-ai.ts

@@ -0,0 +1,62 @@
+export type AIActionType =
+  | 'generate_full'
+  | 'generate_branch'
+  | 'modify_node'
+  | 'add_steps'
+  | 'quick_action'
+  | 'open_chat'
+  | 'variable_inference'
+
+export interface AIDelta {
+  action: 'add' | 'modify' | 'delete'
+  target_node_id: string
+  nodes: Record<string, unknown>[]
+  explanation: string
+}
+
+export interface AISuggestion {
+  id: string
+  action_type: AIActionType
+  target_node_id: string | null
+  changes_json: {
+    before?: Record<string, unknown>
+    after?: Record<string, unknown>
+    delta?: AIDelta
+  }
+  status: 'pending' | 'accepted' | 'dismissed'
+  created_at: string
+  resolved_at: string | null
+}
+
+export interface EditorAIChatMessage {
+  role: 'user' | 'assistant'
+  content: string
+  timestamp: string
+  action_type?: AIActionType
+  delta?: AIDelta
+  knowledge?: KnowledgeCitation[]
+}
+
+export interface KnowledgeCitation {
+  title: string
+  url: string
+  excerpt: string
+}
+
+export interface ContextMenuAction {
+  id: string
+  label: string
+  icon: string
+  action_type: AIActionType
+  description?: string
+}
+
+export interface ContextMenuPosition {
+  x: number
+  y: number
+}
+
+export interface SuggestionMarker {
+  _suggestion?: true
+  _suggestion_id?: string
+}

frontend/src/types/index.ts

@@ -71,3 +71,14 @@ export type {
   FlowExportCategory,
   FlowImportResponse,
 } from './flowTransfer'
+
+export type {
+  AIActionType,
+  AIDelta,
+  AISuggestion,
+  EditorAIChatMessage,
+  KnowledgeCitation,
+  ContextMenuAction,
+  ContextMenuPosition,
+  SuggestionMarker,
+} from './editor-ai'