feat(wasm-utxo): implement Display for WrapMiniscript

Adds proper Display trait implementation for WrapMiniscript and refactors
toString to use it instead of directly calling the inner implementation.
Adds necessary clippy allow attribute to handle shadow warning.

Issue: BTC-2652

Co-authored-by: llm-git <[email protected]>

Author: OttoAllmendinger

packages/wasm-utxo/src/miniscript.rs

@@ -2,6 +2,7 @@ use crate::error::WasmMiniscriptError;
 use crate::try_into_js_value::TryIntoJsValue;
 use miniscript::bitcoin::{PublicKey, XOnlyPublicKey};
 use miniscript::{bitcoin, Legacy, Miniscript, Segwitv0, Tap};
+use std::fmt;
 use std::str::FromStr;
 use wasm_bindgen::prelude::wasm_bindgen;
 use wasm_bindgen::JsValue;
@@ -35,8 +36,9 @@ impl WrapMiniscript {
     }
 
     #[wasm_bindgen(js_name = toString)]
+    #[allow(clippy::inherent_to_string_shadow_display)]
     pub fn to_string(&self) -> String {
-        unwrap_apply!(&self.0, |ms| ms.to_string())
+        format!("{}", self)
     }
 
     #[wasm_bindgen(js_name = encode)]
@@ -112,3 +114,9 @@ impl From<Miniscript<PublicKey, Legacy>> for WrapMiniscript {
         WrapMiniscript(WrapMiniscriptEnum::Legacy(miniscript))
     }
 }
+
+impl fmt::Display for WrapMiniscript {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        unwrap_apply!(&self.0, |ms| write!(f, "{}", ms))
+    }
+}