Add cached GetIndicators, SeedCandles helper#3
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- Cache technical indicators in SymbolWorker, recalculated on every candle update (>= 14 candles). Exposed via Snapshot.Indicators and worker.GetIndicators() — zero computation on read. - Add SeedCandles([]CandleHLCV) for bulk-loading historical candles without manual CandleMsg conversion. - Update documentation: Snapshot struct, convenience accessors, historical data seeding section.
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Summary
technical.TechnicalIndicatorson every candle update and caches the result. Exposed viaSnapshot.Indicatorsandworker.GetIndicators()— zero computation on read.worker.SeedCandles([]CandleHLCV)for bulk-loading historical candles without manualCandleMsgconversion.Test plan
go build ./...)go vet ./...)examples/basic— verify indicators populate after ~20 candles