F11: add SuperTrend, Chandelier Exit, Chande Kroll Stop and ATR Trailing Stop

- Rust core: super_trend.rs (SuperTrend — ATR-banded trailing stop with
  flip logic; SuperTrendOutput { value, direction }), chandelier_exit.rs
  (Chandelier Exit — ATR stop hung off the window's highest high / lowest
  low; ChandelierExitOutput { long_stop, short_stop }),
  chande_kroll_stop.rs (Chande Kroll Stop — a two-stage ATR stop;
  ChandeKrollStopOutput { stop_long, stop_short }), atr_trailing_stop.rs
  (ATR Trailing Stop — a single ratcheting close-based stop). Each with a
  full Indicator impl, runnable doctest and reference / property / warmup
  / reset / batch==streaming tests.
- Python: PySuperTrend / PyChandelierExit / PyChandeKrollStop /
  PyAtrTrailingStop PyO3 classes (struct outputs as tuples and (n, 2)
  arrays) + module registration + .pyi stubs.
- Node: explicit SuperTrendNode / ChandelierExitNode / ChandeKrollStopNode
  / AtrTrailingStopNode with SuperTrendValue / ChandelierExitValue /
  ChandeKrollStopValue objects; index.d.ts and index.js updated.
- WASM: WasmSuperTrend / WasmChandelierExit / WasmChandeKrollStop /
  WasmAtrTrailingStop.
- Wiki: Indicator-SuperTrend/ChandelierExit/ChandeKrollStop/
  AtrTrailingStop.md plus rows in the "Trailing stop" table of
  Indicators-Overview.md and entries in Home.md.
- Add clippy.toml with doc-valid-idents for the proper noun "LeBeau".

cargo fmt + clippy (core/wickra/data/wasm/node) clean; 427 core tests,
25 data tests and 61 doctests green.

crates/wickra-core/src/lib.rs

@@ -44,13 +44,15 @@ pub mod indicators;
 
 pub use error::{Error, Result};
 pub use indicators::{
-    Adl, Adx, AdxOutput, Aroon, AroonOscillator, AroonOutput, Atr, AwesomeOscillator,
-    BollingerBands, BollingerBandwidth, BollingerOutput, Cci, ChaikinMoneyFlow, ChaikinOscillator,
-    Cmo, Coppock, Dema, Donchian, DonchianOutput, Dpo, EaseOfMovement, Ema, ForceIndex,
-    HistoricalVolatility, Hma, Kama, Keltner, KeltnerOutput, MacdIndicator, MacdOutput, MassIndex,
-    Mfi, Mom, Natr, Obv, PercentB, Pmo, Ppo, Psar, Roc, RollingVwap, Rsi, Sma, Smma, StdDev,
-    StochRsi, Stochastic, StochasticOutput, Tema, Trima, Trix, Tsi, UlcerIndex, UltimateOscillator,
-    VolumePriceTrend, Vortex, VortexOutput, Vwap, Vwma, WilliamsR, Wma, Zlema, T3,
+    Adl, Adx, AdxOutput, Aroon, AroonOscillator, AroonOutput, Atr, AtrTrailingStop,
+    AwesomeOscillator, BollingerBands, BollingerBandwidth, BollingerOutput, Cci, ChaikinMoneyFlow,
+    ChaikinOscillator, ChandeKrollStop, ChandeKrollStopOutput, ChandelierExit,
+    ChandelierExitOutput, Cmo, Coppock, Dema, Donchian, DonchianOutput, Dpo, EaseOfMovement, Ema,
+    ForceIndex, HistoricalVolatility, Hma, Kama, Keltner, KeltnerOutput, MacdIndicator, MacdOutput,
+    MassIndex, Mfi, Mom, Natr, Obv, PercentB, Pmo, Ppo, Psar, Roc, RollingVwap, Rsi, Sma, Smma,
+    StdDev, StochRsi, Stochastic, StochasticOutput, SuperTrend, SuperTrendOutput, Tema, Trima,
+    Trix, Tsi, UlcerIndex, UltimateOscillator, VolumePriceTrend, Vortex, VortexOutput, Vwap, Vwma,
+    WilliamsR, Wma, Zlema, T3,
 };
 pub use ohlcv::{Candle, Tick};
 pub use traits::{BatchExt, Chain, Indicator};