c1638db6b2
- Save every search result to DB for later review - Add '搜索历史' tab with timeline view, load/delete records - Raise discovery search timeout from 30s to 120s (Bing Puppeteer needs ~40s) - Reduce search queries from 4 to 3 for faster response - New model: DiscoveryRecord (user_id, product, market, companies JSON) - API: POST/GET/DELETE /api/v1/discovery/records - Migration: discovery_records table