Force refresh wipes the series in hub_kline.db before pulling from the exchange; add a Linux clear script and rename the UI button to 清库重拉.
Co-authored-by: Cursor <cursoragent@cursor.com>
Trim gaps before deciding fetch need, always backfill short contiguous tails, and relax gap detection so tail polls do not block full history loads.
Co-authored-by: Cursor <cursoragent@cursor.com>
Keep only the latest contiguous K-line segment, purge isolated stale rows, and backfill when the tail is still shorter than the initial limit.
Co-authored-by: Cursor <cursoragent@cursor.com>
Drop 12h from market chart options and storage, and avoid left-pan reload and tail refresh from resetting the viewport while zooming.
Co-authored-by: Cursor <cursoragent@cursor.com>
Store 1m/5m/1h/12h/1d/1w with per-timeframe policies, aggregate 15m and 2h/4h on read, and support left-pan history fetches via before_ms.
Co-authored-by: Cursor <cursoragent@cursor.com>
dekun