feat: init the repo

src/price_transform/mod.rs

@@ -0,0 +1,17 @@
+//! Price transformations — helper functions to synthesize OHLC arrays into single price arrays.
+//! Each transform lives in its own file for maintainability.
+
+mod avgprice;
+mod medprice;
+mod typprice;
+mod wclprice;
+
+use pyo3::prelude::*;
+
+pub fn register(m: &Bound<'_, PyModule>) -> PyResult<()> {
+    m.add_function(pyo3::wrap_pyfunction!(self::avgprice::avgprice, m)?)?;
+    m.add_function(pyo3::wrap_pyfunction!(self::medprice::medprice, m)?)?;
+    m.add_function(pyo3::wrap_pyfunction!(self::typprice::typprice, m)?)?;
+    m.add_function(pyo3::wrap_pyfunction!(self::wclprice::wclprice, m)?)?;
+    Ok(())
+}