79d1e0e538
- _fetch_candles now accepts explicit from_ts/to_ts timestamps; falls back to count-based window when omitted - get_historical_candles accepts from_date/to_date in YYYY-MM-DD, YYYY-MM-DD HH:MM, or YYYY-MM-DD HH:MM:SS formats (all UTC) - Yahoo Finance fallback switched from range= to period1/period2 so it respects the exact window in both modes - Added 11 tests covering date range, datetime, end-of-day bump, invalid format, count cap, and pattern detection toggle - gitignore uv.lock (Dockerfile uses pip, not uv sync)