chore: prepare v1.1.0 release

Update version numbers across Rust, Python, and documentation files to 1.1.0. Enhance the .gitignore to include macOS dSYM files and plans directory. Introduce new dependencies in the Rust core library and update the README to reflect recent performance benchmarks and backtesting engine capabilities. Add new artifacts to the benchmarks manifest and improve documentation for the backtesting engine API.

src/cycle/ht_sine.rs

@@ -1,7 +1,5 @@
-use super::common::{compute_ht_core, HT_LOOKBACK};
 use numpy::{IntoPyArray, PyArray1, PyReadonlyArray1};
 use pyo3::prelude::*;
-use std::f64::consts::PI;
 
 /// Hilbert Transform SineWave. Returns (sine, leadsine) where leadsine leads sine by 45°.
 #[pyfunction]
@@ -10,20 +8,6 @@ pub fn ht_sine<'py>(
     py: Python<'py>,
     close: PyReadonlyArray1<'py, f64>,
 ) -> PyResult<(Bound<'py, PyArray1<f64>>, Bound<'py, PyArray1<f64>>)> {
-    let prices = close.as_slice()?;
-    let n = prices.len();
-    let core = compute_ht_core(prices);
-
-    let mut sine = vec![f64::NAN; n];
-    let mut lead_sine = vec![f64::NAN; n];
-
-    for i in HT_LOOKBACK..n {
-        if !core.dc_phase[i].is_nan() {
-            let phase_rad = core.dc_phase[i] * PI / 180.0;
-            sine[i] = phase_rad.sin();
-            lead_sine[i] = (phase_rad + PI / 4.0).sin(); // 45-degree lead
-        }
-    }
-
+    let (sine, lead_sine) = ferro_ta_core::cycle::ht_sine(close.as_slice()?);
     Ok((sine.into_pyarray(py), lead_sine.into_pyarray(py)))
 }