feat(web): 前端全局重构专业量化后台(深色+红涨绿跌+设计系统)

- 设计系统 styles/tokens.css: 深色token(#0d1117底/#161b22卡片) + 红涨绿跌
  (--up#f85149/--down#3fb950) + 品牌蓝#1890ff + 间距/圆角/阴影/mono
- Element Plus深色(element-dark.css + dark/css-vars)+reset
- 删Vite脚手架残留(style.css重写/HelloWorld/hero/vite/vue资源)
- Layout重构(深色专业侧边)+Login+图表统一深色(useChart/echartsDark)
- 新建paper/Live.vue实走监控(step状态/净值/持仓/今日信号10s轮询)
- 业务页套.page头, 保留所有功能/路由/api
- 验证: vue-tsc --noEmit ✅ + npm run build ✅

frontend/src/api/paper.ts

@@ -24,6 +24,14 @@ export interface PaperAccount {
   mode: string
   interval: string
   status: string
+  symbols?: string
+  initial_capital?: number
+  start_date?: string
+  end_date?: string
+  last_run_date?: string | null
+  next_run_at?: string | null
+  checkpoint_date?: string | null
+  error_msg?: string | null
 }
 
 export interface BalancePoint {
@@ -54,6 +62,24 @@ export interface StrategySummary {
   commission: number
 }
 
+export interface PositionRow {
+  symbol: string
+  volume: number
+  frozen: number
+  avg_price: number
+}
+
+export interface PendingOrder {
+  strategy_id: string
+  symbol: string
+  side: string
+  price: number
+  volume: number
+  is_market: boolean
+  match_session: string
+  listing_days: number
+}
+
 export async function createPaper(req: PaperCreate): Promise<number> {
   const { data } = await apiClient.post<{ account_id: number }>('/paper/create', req)
   return data.account_id
@@ -78,3 +104,13 @@ export async function getStrategies(aid: number): Promise<StrategySummary[]> {
   const { data } = await apiClient.get<StrategySummary[]>(`/paper/${aid}/strategies`)
   return data
 }
+
+export async function getPositions(aid: number): Promise<PositionRow[]> {
+  const { data } = await apiClient.get<PositionRow[]>(`/paper/${aid}/positions`)
+  return data
+}
+
+export async function getPending(aid: number): Promise<PendingOrder[]> {
+  const { data } = await apiClient.get<PendingOrder[]>(`/paper/${aid}/pending`)
+  return data
+}