feat(family-14): add 15 candlestick patterns (#53)

* feat(family-14): add 15 candlestick patterns

Introduces the Candlestick Patterns family (block A of the family-14 spec)
as scalar f64 indicators on Candle inputs. Each detector emits +1.0 for a
bullish reading, -1.0 for a bearish reading, and 0.0 when no pattern is
present. Doji is direction-less and emits +1.0 / 0.0 only.

New indicators (15):

- Doji
- Hammer
- InvertedHammer
- HangingMan
- ShootingStar
- Engulfing
- Harami
- MorningEveningStar (signed: +1.0 morning star, -1.0 evening star)
- ThreeSoldiersOrCrows (signed: +1.0 soldiers, -1.0 crows)
- PiercingDarkCloud (signed: +1.0 piercing, -1.0 dark cloud)
- Marubozu (signed: +1.0 bullish, -1.0 bearish, 5 percent shadow tolerance default)
- Tweezer (signed: +1.0 bottom, -1.0 top, 10 bps relative tolerance default)
- SpinningTop (direction-signed indecision)
- ThreeInside (confirmed Harami)
- ThreeOutside (confirmed Engulfing)

MVP scope notes:

- Pattern-shape check only, no trend filter applied. Caller combines with a
  trend indicator for actionable signals. Documented in every doc comment.
- Block B (Harmonic patterns) and block C (Chart patterns) remain
  out-of-scope and will follow when the pattern-detection framework (pivot
  detector, multi-bar state machines) lands.

Touched across all bindings: Python, Node, WASM. Fuzz target, Python tests
(streaming-vs-batch + reference values), Node tests (streaming-vs-batch +
reference values), and a representative bench subset (1-, 2- and 3-bar
patterns) added. README family table + indicator counter (71 -> 86, eight
-> nine families) and CHANGELOG [Unreleased] updated.

* fix(family-14): unpack MULTI values with *_ to handle 3-element tuples

* cov(family-14): cover Default impl cold paths and MorningEveningStar guard branches

crates/wickra-core/src/indicators/mod.rs

@@ -49,6 +49,7 @@ mod dema;
 mod demand_index;
 mod demark_pivots;
 mod detrended_std_dev;
+mod doji;
 mod donchian;
 mod donchian_stop;
 mod double_bollinger;
@@ -58,6 +59,7 @@ mod ehlers_stochastic;
 mod elder_impulse;
 mod ema;
 mod empirical_mode_decomposition;
+mod engulfing;
 mod evwma;
 mod fama;
 mod fibonacci_pivots;
@@ -66,6 +68,9 @@ mod force_index;
 mod fractal_chaos_bands;
 mod frama;
 mod garman_klass;
+mod hammer;
+mod hanging_man;
+mod harami;
 mod heikin_ashi;
 mod hilbert_dominant_cycle;
 mod hilo_activator;
@@ -78,6 +83,7 @@ mod inertia;
 mod initial_balance;
 mod instantaneous_trendline;
 mod inverse_fisher_transform;
+mod inverted_hammer;
 mod jma;
 mod kama;
 mod keltner;
@@ -93,12 +99,14 @@ mod ma_envelope;
 mod macd;
 mod mama;
 mod market_facilitation_index;
+mod marubozu;
 mod mass_index;
 mod mcginley_dynamic;
 mod median_absolute_deviation;
 mod median_price;
 mod mfi;
 mod mom;
+mod morning_evening_star;
 mod natr;
 mod nvi;
 mod obv;
@@ -108,6 +116,7 @@ mod pearson_correlation;
 mod percent_b;
 mod percentage_trailing_stop;
 mod pgo;
+mod piercing_dark_cloud;
 mod pmo;
 mod ppo;
 mod psar;
@@ -121,12 +130,14 @@ mod rsi;
 mod rvi;
 mod rvi_volatility;
 mod rwi;
+mod shooting_star;
 mod sine_wave;
 mod skewness;
 mod sma;
 mod smi;
 mod smma;
 mod spearman_correlation;
+mod spinning_top;
 mod standard_error;
 mod standard_error_bands;
 mod starc_bands;
@@ -151,6 +162,9 @@ mod td_risk_level;
 mod td_sequential;
 mod td_setup;
 mod tema;
+mod three_inside;
+mod three_outside;
+mod three_soldiers_or_crows;
 mod tii;
 mod trima;
 mod trix;
@@ -158,6 +172,7 @@ mod true_range;
 mod tsi;
 mod tsv;
 mod ttm_squeeze;
+mod tweezer;
 mod typical_price;
 mod ulcer_index;
 mod ultimate_oscillator;
@@ -231,6 +246,7 @@ pub use dema::Dema;
 pub use demand_index::DemandIndex;
 pub use demark_pivots::{DemarkPivots, DemarkPivotsOutput};
 pub use detrended_std_dev::DetrendedStdDev;
+pub use doji::Doji;
 pub use donchian::{Donchian, DonchianOutput};
 pub use donchian_stop::{DonchianStop, DonchianStopOutput};
 pub use double_bollinger::{DoubleBollinger, DoubleBollingerOutput};
@@ -240,6 +256,7 @@ pub use ehlers_stochastic::EhlersStochastic;
 pub use elder_impulse::ElderImpulse;
 pub use ema::Ema;
 pub use empirical_mode_decomposition::EmpiricalModeDecomposition;
+pub use engulfing::Engulfing;
 pub use evwma::Evwma;
 pub use fama::Fama;
 pub use fibonacci_pivots::{FibonacciPivots, FibonacciPivotsOutput};
@@ -248,6 +265,9 @@ pub use force_index::ForceIndex;
 pub use fractal_chaos_bands::{FractalChaosBands, FractalChaosBandsOutput};
 pub use frama::Frama;
 pub use garman_klass::GarmanKlassVolatility;
+pub use hammer::Hammer;
+pub use hanging_man::HangingMan;
+pub use harami::Harami;
 pub use heikin_ashi::{HeikinAshi, HeikinAshiOutput};
 pub use hilbert_dominant_cycle::HilbertDominantCycle;
 pub use hilo_activator::HiLoActivator;
@@ -260,6 +280,7 @@ pub use inertia::Inertia;
 pub use initial_balance::{InitialBalance, InitialBalanceOutput};
 pub use instantaneous_trendline::InstantaneousTrendline;
 pub use inverse_fisher_transform::InverseFisherTransform;
+pub use inverted_hammer::InvertedHammer;
 pub use jma::Jma;
 pub use kama::Kama;
 pub use keltner::{Keltner, KeltnerOutput};
@@ -275,12 +296,14 @@ pub use ma_envelope::{MaEnvelope, MaEnvelopeOutput};
 pub use macd::{MacdIndicator, MacdOutput};
 pub use mama::{Mama, MamaOutput};
 pub use market_facilitation_index::MarketFacilitationIndex;
+pub use marubozu::Marubozu;
 pub use mass_index::MassIndex;
 pub use mcginley_dynamic::McGinleyDynamic;
 pub use median_absolute_deviation::MedianAbsoluteDeviation;
 pub use median_price::MedianPrice;
 pub use mfi::Mfi;
 pub use mom::Mom;
+pub use morning_evening_star::MorningEveningStar;
 pub use natr::Natr;
 pub use nvi::Nvi;
 pub use obv::Obv;
@@ -290,6 +313,7 @@ pub use pearson_correlation::PearsonCorrelation;
 pub use percent_b::PercentB;
 pub use percentage_trailing_stop::PercentageTrailingStop;
 pub use pgo::Pgo;
+pub use piercing_dark_cloud::PiercingDarkCloud;
 pub use pmo::Pmo;
 pub use ppo::Ppo;
 pub use psar::Psar;
@@ -303,12 +327,14 @@ pub use rsi::Rsi;
 pub use rvi::Rvi;
 pub use rvi_volatility::RviVolatility;
 pub use rwi::{Rwi, RwiOutput};
+pub use shooting_star::ShootingStar;
 pub use sine_wave::SineWave;
 pub use skewness::Skewness;
 pub use sma::Sma;
 pub use smi::Smi;
 pub use smma::Smma;
 pub use spearman_correlation::SpearmanCorrelation;
+pub use spinning_top::SpinningTop;
 pub use standard_error::StandardError;
 pub use standard_error_bands::{StandardErrorBands, StandardErrorBandsOutput};
 pub use starc_bands::{StarcBands, StarcBandsOutput};
@@ -333,6 +359,9 @@ pub use td_risk_level::{TdRiskLevel, TdRiskLevelOutput};
 pub use td_sequential::{TdSequential, TdSequentialOutput};
 pub use td_setup::TdSetup;
 pub use tema::Tema;
+pub use three_inside::ThreeInside;
+pub use three_outside::ThreeOutside;
+pub use three_soldiers_or_crows::ThreeSoldiersOrCrows;
 pub use tii::Tii;
 pub use trima::Trima;
 pub use trix::Trix;
@@ -340,6 +369,7 @@ pub use true_range::TrueRange;
 pub use tsi::Tsi;
 pub use tsv::Tsv;
 pub use ttm_squeeze::{TtmSqueeze, TtmSqueezeOutput};
+pub use tweezer::Tweezer;
 pub use typical_price::TypicalPrice;
 pub use ulcer_index::UlcerIndex;
 pub use ultimate_oscillator::UltimateOscillator;