Function exportToJSON

src/services/exportService.ts:69–80

(positions: Position[], summary: ProfitSummary)

// 导出为 JSON（用于持久化）
export function exportToJSON(positions: Position[], summary: ProfitSummary): void {
  const data: ExportData = {
    version: '1.0.0',
    exportTime: Date.now(),
    positions,
    summary,
  }

  const jsonContent = JSON.stringify(data, null, 2)

  downloadFile(jsonContent, `持仓备份_${getDateString()}.json`, 'application/json')
}

// 导出完整数据（包含持仓、复盘和事件）
export async function exportCompleteData(positions: Position[], summary: ProfitSummary): Promise<void> {