Load 2000 bars for 1m/5m/15m, 1000 for 1h/2h/4h, and 500 for 1d/1w on first screen instead of 300-bar chunked defaults.
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>