Update project structure and configurations

bindings/wasm/src/errors.rs

@@ -1,10 +1,26 @@
 //! Error handling for WASM bindings.
 //!
-//! Maps errors to JavaScript exceptions with human-readable messages.
+//! Maps internal error types to JavaScript exceptions with human-readable messages.
 
+use entropyk::ThermoError;
 use wasm_bindgen::JsValue;
 
 /// Convert a Result to a Result with JsValue error.
 pub fn result_to_js<T, E: std::fmt::Display>(result: Result<T, E>) -> Result<T, JsValue> {
     result.map_err(|e| js_sys::Error::new(&e.to_string()).into())
 }
+
+/// Map ThermoError to a human-readable JsValue.
+pub fn thermo_error_to_js(e: ThermoError) -> JsValue {
+    let msg = match &e {
+        ThermoError::Component(err) => format!("Component error: {}", err),
+        ThermoError::Solver(err) => format!("Solver error: {}", err),
+        ThermoError::Fluid(err) => format!("Fluid error: {}", err),
+        ThermoError::Topology(err) => format!("Topology error: {}", err),
+        ThermoError::AddEdge(err) => format!("Edge error: {}", err),
+        ThermoError::Connection(err) => format!("Connection error: {}", err),
+        ThermoError::Constraint(err) => format!("Constraint error: {}", err),
+        _ => format!("{}", e),
+    };
+    js_sys::Error::new(&msg).into()
+}