新增: 初始化 DevFlow 项目仓库

Tauri 2 + Vue 3 + Vite 6 桌面应用，Rust workspace 含 13 个 crate
(df-ai / df-storage / df-workflow / df-core / df-execute 等)。
核心能力：AI 聊天 agentic 循环(工具调用+人工审批)、工作流引擎、
任务/想法/项目/阶段管理、可追溯性，及配套前端组件。

src/api/types.ts

@@ -0,0 +1,204 @@
+//! TypeScript 类型定义 — 与 Rust Record 结构体严格对齐
+
+// ============================================================
+// 想法
+// ============================================================
+
+export interface IdeaRecord {
+  id: string
+  title: string
+  description: string
+  status: string // draft | pending_review | approved | promoted | rejected
+  priority: number
+  score: number | null
+  tags: string | null // JSON 数组字符串
+  source: string | null
+  promoted_to: string | null
+  ai_analysis: string | null
+  scores: string | null
+  created_at: string
+  updated_at: string
+}
+
+export interface CreateIdeaInput {
+  title: string
+  description?: string
+  priority?: number
+  tags?: string
+  source?: string
+}
+
+// ============================================================
+// 项目
+// ============================================================
+
+export interface ProjectRecord {
+  id: string
+  name: string
+  description: string
+  status: string // planning | in_progress | paused | completed | cancelled
+  idea_id: string | null
+  created_at: string
+  updated_at: string
+}
+
+export interface CreateProjectInput {
+  name: string
+  description?: string
+  idea_id?: string
+}
+
+// ============================================================
+// 任务
+// ============================================================
+
+export interface TaskRecord {
+  id: string
+  project_id: string
+  title: string
+  description: string
+  status: string // todo | in_progress | review_ready | merged | abandoned
+  priority: number // 0=critical, 1=high, 2=medium, 3=low
+  branch_name: string | null
+  assignee: string | null
+  workflow_def_id: string | null
+  base_branch: string | null
+  created_at: string
+  updated_at: string
+}
+
+export interface CreateTaskInput {
+  project_id: string
+  title: string
+  description?: string
+  priority?: number
+  branch_name?: string
+  assignee?: string
+}
+
+// ============================================================
+// 工作流
+// ============================================================
+
+export interface WorkflowRecord {
+  id: string
+  name: string
+  dag_json: string
+  status: string // running | completed | failed | cancelled
+  triggered_by: string | null
+  project_id: string | null
+  task_id: string | null
+  created_at: string
+  completed_at: string | null
+}
+
+/** 工作流事件载荷（后端 emit 的结构） */
+export interface WorkflowEventPayload {
+  execution_id: string
+  event: {
+    type: string
+    [key: string]: unknown
+  }
+}
+
+// ============================================================
+// 通用
+// ============================================================
+
+export type UpdateField = {
+  id: string
+  field: string
+  value: string
+}
+
+// ============================================================
+// AI 聊天
+// ============================================================
+
+export interface AiProviderConfig {
+  id: string
+  name: string
+  provider_type: string
+  api_key: string
+  base_url: string
+  default_model: string
+  models: string | null
+  is_default: boolean
+  config: string | null
+  created_at: string
+  updated_at: string
+}
+
+/** AI 聊天事件（后端 emit 的结构，conversation_id 用于多对话流式路由） */
+export type AiChatEvent = ({
+  type: 'AiTextDelta'; delta: string
+} | {
+  type: 'AiToolCallStarted'; id: string; name: string; args: unknown
+} | {
+  type: 'AiToolCallCompleted'; id: string; result: unknown
+} | {
+  type: 'AiApprovalRequired'; id: string; name: string; args: unknown; reason: string
+} | {
+  type: 'AiApprovalResult'; id: string; approved: boolean
+} | {
+  type: 'AiCompleted'; total_tokens: number
+} | {
+  type: 'AiError'; error: string
+} | {
+  type: 'AiAgentRound'; round: number
+}) & {
+  conversation_id?: string
+}
+
+/** AI 消息（前端渲染用，isError 标记错误消息用于差异化样式） */
+export interface AiMessage {
+  id: string
+  role: 'user' | 'assistant' | 'tool'
+  content: string
+  isError?: boolean
+  toolCalls?: AiToolCallInfo[]
+  timestamp: number
+}
+
+/** 工具调用信息 */
+export interface AiToolCallInfo {
+  id: string
+  name: string
+  args: unknown
+  status: 'running' | 'pending_approval' | 'completed' | 'rejected'
+  result?: unknown
+}
+
+/** 对话列表摘要 */
+export interface AiConversationSummary {
+  id: string
+  title: string | null
+  provider_id: string | null
+  model: string | null
+  created_at: string
+  updated_at: string
+}
+
+/** 人工审批请求 */
+export interface HumanApprovalRequest {
+  execution_id: string
+  node_id: string
+  title: string
+  description: string
+  options: string[]
+}
+
+/** 人工审批响应 */
+export interface HumanApprovalResponse {
+  execution_id: string
+  node_id: string
+  decision: string
+  comment?: string
+}
+
+/** 切换对话返回（含 messages JSON） */
+export interface AiConversationDetail {
+  id: string
+  title: string | null
+  messages: string  // JSON string of ChatMessage[]
+}