Backtest Export Payload Trim: Remove Candles from Main JSON

Change

Updated regular backtest export endpoint to exclude candle data from the main export JSON.

• GET /api/backtests/:id/export now returns only the core bundle:
  • overview
  • orders
  • parameters
  • code/snapshot metadata
  • raw payload
• Candle data remains available exclusively through the separate candles endpoint/button:
  • GET /api/backtests/:id/candles

Why

Main export became too large when candles were embedded. This duplicates the dedicated candle export path and hurts usability.

File Updated

• services/backend/src/routes/backtests/backtests-handlers.ts

Validation

• pnpm typecheck passed.
• pnpm lint passed with existing warning-only baseline.

Deployments

• Dev backend version: 88fd4a7e-f637-4c86-b89b-bc208d5f8fee
• Production backend version: 6fb3156f-f0b6-488c-8369-bd7a61b367a8