Initial commit: AI chat assistant with workflow chat, workspace, and profile tabs

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

types/index.uts

@@ -0,0 +1,59 @@
+/**
+ * AI Chat Assistant — Type Definitions
+ */
+
+// Workflow types
+export type WorkflowId = 'general' | 'code' | 'document' | 'data' | 'creative'
+
+export interface WorkflowDef {
+  id: WorkflowId
+  name: string
+  icon: string
+  description: string
+  color: string
+}
+
+// Message types
+export type MessageRole = 'user' | 'assistant'
+export type MessageStatus = 'sending' | 'sent' | 'error'
+
+export interface Message {
+  id: string
+  role: MessageRole
+  content: string
+  timestamp: number
+  status: MessageStatus
+}
+
+// Conversation types
+export interface Conversation {
+  id: string
+  title: string
+  workflowId: WorkflowId
+  messages: Message[]
+  createdAt: number
+  updatedAt: number
+}
+
+// Workspace types
+export type WorkspaceItemType = 'code_snippet' | 'document' | 'analysis_report' | 'creative_output'
+
+export interface WorkspaceItem {
+  id: string
+  conversationId: string
+  workflowId: WorkflowId
+  type: WorkspaceItemType
+  title: string
+  content: string
+  summary: string
+  createdAt: number
+}
+
+// Parsed markdown segment
+export interface ParsedSegment {
+  type: 'text' | 'code' | 'bold'
+  value: string
+}
+
+// Bottom tab keys
+export type TabKey = 'workspace' | 'chat' | 'profile'