From 234df3f92333644a4dcdfaaa7da004d9a247f31f Mon Sep 17 00:00:00 2001
From: "dobby-yivi-agent[bot]"
 <275734547+dobby-yivi-agent[bot]@users.noreply.github.com>
Date: Fri, 1 May 2026 07:58:35 +0000
Subject: [PATCH] chore: fix clippy useless_format warning in email.rs

`format!("{}", &sender)` allocated a String just to borrow it as
&str into url::form_urlencoded::Serializer::append_pair, which
takes &str. Pass &sender directly.

Step 2 of the CI bring-up sequence in #126: clippy must pass
cleanly before a clippy job can be added in CI.

Refs: #126
---
 src/email.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/email.rs b/src/email.rs
index 83470ef..f55bb87 100644
--- a/src/email.rs
+++ b/src/email.rs
@@ -250,7 +250,7 @@ pub async fn send_email(
         let mut url = base.join("/download")?;
         url.query_pairs_mut()
             .append_pair("uuid", uuid)
-            .append_pair("recipient", &format!("{}", &sender));
+            .append_pair("recipient", &sender);
 
         let (email, subject) = email_confirm(state, url.as_str());
         let email = Message::builder()