* feat(data-layer): Resampler (candle resampling) in all 10 languages
Second data-layer feature (F3): resample candles into a higher timeframe.
- Native (Node.js/WASM): new Resampler(timeframe) -> update(o,h,l,c,v,ts):
Candle|null + flush(): Candle|null. Python the same -> tuple|None.
- C ABI: wickra_resampler_new/update/flush/free (update has the multi-output
shape so the generators auto-emit it; flush is bespoke). Go Update -> (Candle,
bool) + Flush; C# Candle? Update/Flush; Java Candle update/flush; R update()
generic + a flush() S3 method (extends base::flush); C/C++ direct.
- Cross-language golden (testdata/golden/data_resampled.csv): the shared input
candles resampled into 5-unit buckets, the final partial bucket via flush,
pinned bit-for-bit across every binding.
Verified locally in all 10 (3 candles for the 5-unit smoke; 16 for the golden).
The WickraCandle output record is shared with the tick aggregator (deduped).
* test(node): exclude data-layer types from the indicator completeness contract
The Resampler exposes update(), so the completeness test flagged it as an
indicator and required batch/reset/isReady/warmupPeriod, which a data-layer type
does not have. Exclude TickAggregator and Resampler like the bar builders.
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