chore(api): apply rustfmt across modules and tests

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/src/modules/currency/handlers.rs

@@ -39,9 +39,10 @@ async fn convert(
     State(state): State<AppState>,
     Query(q): Query<ConvertQuery>,
 ) -> ApiResult<Json<Value>> {
-    let (amount_minor, currency) =
-        service::convert(&state, q.amount_minor, &q.from, &q.to).await?;
-    Ok(Json(json!({ "amount_minor": amount_minor, "currency": currency })))
+    let (amount_minor, currency) = service::convert(&state, q.amount_minor, &q.from, &q.to).await?;
+    Ok(Json(
+        json!({ "amount_minor": amount_minor, "currency": currency }),
+    ))
 }
 
 async fn list_all_currencies(

apps/api/src/modules/currency/service.rs

@@ -57,7 +57,9 @@ pub async fn upsert(
     use crate::error::ApiError;
     let code = code.to_uppercase();
     if code.len() != 3 || !code.chars().all(|c| c.is_ascii_uppercase()) {
-        return Err(ApiError::BadRequest("code must be a 3-letter ISO code".into()));
+        return Err(ApiError::BadRequest(
+            "code must be a 3-letter ISO code".into(),
+        ));
     }
     if rate_to_base <= rust_decimal::Decimal::ZERO {
         return Err(ApiError::BadRequest("rate_to_base must be > 0".into()));
@@ -82,7 +84,11 @@ pub async fn upsert(
     .await?)
 }
 
-pub async fn set_rate(state: &AppState, code: &str, rate: rust_decimal::Decimal) -> ApiResult<Currency> {
+pub async fn set_rate(
+    state: &AppState,
+    code: &str,
+    rate: rust_decimal::Decimal,
+) -> ApiResult<Currency> {
     use crate::error::ApiError;
     if rate <= rust_decimal::Decimal::ZERO {
         return Err(ApiError::BadRequest("rate_to_base must be > 0".into()));